---
product_id: 12834013
title: "3M Indoor Window Insulation, Insulator Kit for 2 Windows 3ft x 5ft, Keeps Cold Air Out and Warm Air In, Includes Heat Shrink Window Film and Scotch Window Film Mounting Tape (2120W-6)"
price: "€ 19.93"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.fr/products/12834013-3m-indoor-window-insulation-insulator-kit-for-2-windows-3ft
store_origin: FR
region: France
---

# Strong double-sided Scotch tape seal Fits 2 windows (3'x5') Easy, wrinkle-free heat shrink film 3M Indoor Window Insulation, Insulator Kit for 2 Windows 3ft x 5ft, Keeps Cold Air Out and Warm Air In, Includes Heat Shrink Window Film and Scotch Window Film Mounting Tape (2120W-6)

**Price:** € 19.93
**Availability:** ✅ In Stock

## Summary

> ❄️ Lock in warmth, lose the chill—your windows’ winter glow-up!

## Quick Answers

- **What is this?** 3M Indoor Window Insulation, Insulator Kit for 2 Windows 3ft x 5ft, Keeps Cold Air Out and Warm Air In, Includes Heat Shrink Window Film and Scotch Window Film Mounting Tape (2120W-6)
- **How much does it cost?** € 19.93 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/12834013-3m-indoor-window-insulation-insulator-kit-for-2-windows-3ft)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Crystal Clear View:** Ultra-transparent film ensures your natural light stays bright and undistorted.
- • **Trusted 3M Quality:** Durable, reliable materials designed to last the entire cold season.
- • **Seal in Cozy Warmth:** Keep winter chills out and your heating bills down with airtight insulation.
- • **Effortless Installation:** Peel, stick, and shrink—no tools or pro skills needed for a flawless fit.
- • **Condensation & Frost Defense:** Prevents moisture buildup for clearer windows and healthier indoor air.

## Overview

The 3M Indoor Window Insulation Kit includes heat shrink film and double-sided Scotch mounting tape to insulate two 3'x5' windows. Designed for quick, wrinkle-free installation, it creates an airtight seal that reduces drafts, condensation, and frost buildup—helping lower heating costs while maintaining clear, natural light indoors.

## Description

desertcart.com With the 3M indoor window insulator kit, you can lower your heating bills during the winter and make your home more energy-efficient. Part of 3M's line of energy-saving products, this kit includes window insulation film and a roll of double-sided mounting tape to create an airtight seal. Stretching the film removes wrinkles for a transparent view. This version of the 3M indoor window insulator kit enables you to insulate two 3-foot-by-5-foot windows.Keep the Heat In and the Cold Out Made by 3M, this indoor window insulator kit contains window insulation film along with Scotch Window Film Tape to keep cold drafts out and warm air in. As a result, you can reduce your heating costs during the winter. The film shrinks tight around your window for a transparent, wrinkle-free fit and is made to reduce condensation and prevent frost build-up. Double-Sided Mounting Tape for a Secure Seal Included with this kit is a 1/2-inch-by-12-yard roll of 3M window film mounting tape to keep your insulation in place all season long. This double-sided tape seals off cracks and crevices, creates an airtight seal, and establishes a strong bond between the surface, the tape, and the insulation film, as recommended in ENERGY STAR's "Seal and Insulate" guidelines. Featuring a convenient, ready-to-peel liner, the tape adheres easily to a variety of surfaces and stays intact upon removal.Simple, Fast Installation Installing the window insulation is easy. You simply unfold the film and cut it to the width of the window, allowing an extra inch on all sides. Next, you firmly apply the mounting tape around the window frame and remove the paper liner. Then you apply the film to the tape, starting at the top of the window, and reposition and stretch the film to remove wrinkles. Finally, you use a blow dryer to remove any remaining wrinkles, then trim any excess film.Made in the United States, and designed for indoor use only, this insulator kit can be used with aluminum, vinyl-clad, or painted or varnished wood molding, but it should not be applied to veneer paneling or Lauan mahogany molding. The film and tape should be removed from the window at the end of the season. The film measures 4 square yards, or 5.16 feet by 7 feet by 0.75 thousandths of an inch (H x W x D), and weighs 0.13 pounds.What's in the Box Window insulation film and one roll of mounting tape. Product Description Available in a variety of indoor and outdoor window sizes. 3M Window Insulator Kits keep cold drafts out and warm air in through heat shrink window film and Scotch Window Film Mounting Tape. 3M window kits have the clearest film and stay up all season long with Scotch tape technology. Scotch double sided tape holds firmly between films and surfaces.

Review: Easy Peasy! Even for me! - This could have gone one of two ways. Either it was going to be a huge pain in my butt to do and I'd end up just tossing the whole mess out in a big plastic ball of sweaty frustration, or it would just work. Well, I'm here to tell you that this stuff works! I have two gigantic 3'x7' "picture windows" that have zero window coverings. They face my lake view. I was using a blanket to cover them which, while it worked, made the house dark, and really, who wants to spend 6 months out of the year not lookin' at the view I bought this house for?!?!... So, this was my cheap first attempt at getting rid of the blankets and not spending any money (yet) on window treatments. There was PLENTY of plastic and PLENTY of tape for my use. In fact I only used one roll of tape. I thought it would be messy, clingy, wrapping up on itself, sticking to what it wasn't supposed to, and in the end, hard to see out of. It was/is NONE of those things. I am pretty handy for a gal, so this was within my abilities, but really, as long as you have full range of motion (can hold your hands up to apply the tape and the plastic), then you are "skilled" enough to apply this. I can see through it. It was easy to make minor adjustments on the outside edges once applied. I used the hair dryer, and it did "melt" away the small tiny ripples (they were barely noticeable to begin with). The only "tip" I have is before putting the tape on the window (sticky on the window side, paper on the side facing you), unpeel part of the paper and bend it in towards the tape to make a little folded tab so that when you are ready to pull the paper off you can just grab the little "tab" and rip it off. My first window I did not do this and I think I spent more time trying to get that danged paper off the back than I did on any other aspect of the project. And it was by far the only frustrating part of the entire project. I have attached some photos to show you how well you can see through it, and how well it works on a relatively large window. I live in a 1970 mobile, so every little seal counts. To be honest, I don't even see me pulling it off in the summer. I have a heat pump, and this will help keep the cool air in on those hot days. Since I can see out of it, and you really don't know it's there unless someone points it out, why take it down and do it again 6 months later? If you are on the fence, jump off and just do it.
Review: A Winter Lifesaver - Living in a region with chilly winters, drafty windows can turn a cozy home into an energy-sapping nightmare. That's where the 3M Indoor Window Insulation Kit comes in. Designed to create an insulating air pocket between your window pane and your living space, this particular kit caters to five standard-sized windows, each up to 3ft x 5ft. Having used similar 3M kits for years, I can confidently say this product is a surprisingly effective and budget-friendly solution for combating cold drafts and high heating bills. Product Overview & Key Features: The 3M Indoor Window Insulation Kit for 5 windows includes: 5 Sheets of High-Clarity Shrink Film: Each measuring approximately 42" x 62" (designed for windows up to 3'x5' with sufficient overlap for taping). 1 Roll of 3M Scotch Brand Double-Sided Acrylic Window Kit Tape: This is crucial – 3M's tape is generally superior to generic alternatives, offering strong adhesion without excessive residue upon removal. The core principle is simple: clean your window frames, apply the double-sided tape, adhere the film, and then use a hairdryer to shrink it taut and clear. This creates an invisible barrier that significantly reduces heat loss. Performance & Effectiveness (5/5 Stars): This is where the 3M kit truly shines. The difference it makes is nothing short of dramatic. Draft Elimination: Cold drafts are instantly eliminated. You'll notice the immediate absence of that chilling breeze near your windows. Temperature Increase: The surface temperature of the interior glass rises noticeably. Rooms that felt perpetually cold, especially near windows, become significantly warmer and more consistent in temperature. Energy Savings: By reducing heat loss, your furnace won't have to work as hard, directly translating into lower heating bills. This kit pays for itself, often within a month or two, depending on your energy costs and the severity of your drafts. Noise Reduction (Minor): While not its primary purpose, the added layer of film can offer a slight, subtle reduction in outside noise. Installation (3.5/5 Stars): Installation is generally straightforward, but it requires patience, attention to detail, and a bit of a knack to get it perfect. Preparation is Key: Start with meticulously clean, dry window frames. Any dust, dirt, or grease will compromise the tape's adhesion. This step cannot be skipped! Applying the Tape: Apply the double-sided tape smoothly and continuously around the entire perimeter of the window frame. Ensure it's firmly pressed down and there are no gaps. Applying the Film: This is arguably the trickiest part, especially for larger windows. Unroll the film carefully, ensuring it doesn't stick to itself or the floor. Start by adhering it to the top tape strip, then slowly work your way down the sides, keeping it as taught and wrinkle-free as possible. It's often easier with two people for bigger windows. Don't press too hard until you're sure of the positioning, as readjusting can be messy. Shrinking with Heat: Using a hairdryer (a heat gun on a low setting also works, but be extra careful), starting from one corner, gently wave the heat across the film. You'll see it instantly tighten, smooth out wrinkles, and become crystal clear. Keep the hairdryer moving to avoid overheating and potentially tearing the film. Don't aim for absolute perfection initially; the shrinking process does most of the work. Tips for Success: Work Clean: A dust-free environment prevents unsightly specks getting trapped under the film. Measure Twice: Ensure you have adequate film overlap for the tape. Be Patient: Don't rush the process, especially the film application and shrinking. Hairdryer Technique: Use steady, sweeping motions. Overheating can cause holes. Appearance (4/5 Stars): When installed correctly, the film shrinks to be remarkably clear and virtually invisible from a distance. It creates a smooth, almost glass-like surface. Up close, you might notice a slight distortion or a faint sheen, but for the most part, it effectively disappears. However, if not shrunk properly, if dust gets trapped, or if the film is stretched unevenly, it can be noticeable. It's a temporary solution, so while it doesn't add to your decor, it doesn't detract significantly either. Durability & Removal (4/5 Stars): The film is surprisingly robust once shrunk and can easily last an entire heating season. It resists minor bumps and pokes without tearing easily. When spring arrives, removal is generally simple. Just peel off the film and then the tape. 3M's tape is designed to minimize residue, but on older, porous paint or unfinished wood, you might find some adhesive residue that requires a gentle cleaner (like Goo Gone or rubbing alcohol) to remove. Always test a small, inconspicuous area first. Value for Money (5/5 Stars): Given its effectiveness in reducing heating costs and improving comfort, this kit offers exceptional value. For a relatively small investment, you get a significant return in terms of warmth and savings. It's an ideal solution for renters who can't replace windows, or homeowners looking for a cost-effective alternative to expensive window upgrades.

## Features

- Scotch double sided tape holds firmly between films and surfaces
- Reduces condensation and prevents frost buildup
- Quick and easy installation
- Fits two 3'x 5' indoor windows

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | 3M |
| UPC | 051131569508 |
| Part Number | 2120W-6 |
| Item Weight | 5.6 ounces |
| Product Dimensions | 1.44 x 9.75 x 8.72 inches |
| Item model number | 2120W |
| Is Discontinued By Manufacturer | No |
| Size | 2-Windows |
| Color | 1 Pack |
| Style | 2-Windows |
| Pattern | Insulator Kit |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Coverage | The coverage of the 3M Indoor Window Insulation Kit is approximately 30 square feet, as it can cover two 3ft x 5ft windows. |
| Certification | For Indoor Use Only |
| Included Components | 62 X 42 in Film, 1/2 X 432 in Tape, (2) 3 X 5 ft Windows |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Warranty |

## Product Details

- **Material:** Plastic
- **Brand:** 3M
- **Item Thickness:** 10 Millimeters
- **Recommended Uses For Product:** Insulating indoor windows
- **Global Trade Identification Number:** 00051131569508

## Images

![3M Indoor Window Insulation, Insulator Kit for 2 Windows 3ft x 5ft, Keeps Cold Air Out and Warm Air In, Includes Heat Shrink Window Film and Scotch Window Film Mounting Tape (2120W-6) - Image 1](https://m.media-amazon.com/images/I/6181xPK9SIL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Will this work for insulating from the heat of a hot climate too?**
A: I would assume so, though we live in Maine near the coast where it can be in the teens and 20s sometimesduring the weather; I assume it would work since 3M is an excellent product - the hardware versionsdon't seem to work as well. You'll need the 3M tape for this as well.

**Q: Has anyone had success applying this to a window without trim? Our 50s track house just has drywall-cased windows.**
A: I want an answer to this too! I also have the drywall-cased windows from the 50s. Thanks!!

**Q: I am from the South, so my big question is, does it insulates from heat so well as it does from cold? 
Will it last if you leave it permanently, or you need to replace it every year?
Third question would be, can you glue it against dry wall?
Thanks**
A: Old query, but for newbies: this would work as well to keep the A/C air away from the window pane, thus it would insulate heat as well as cold. It's just physics. It forms a dead air space just like a storm window (if you know what those are up north). You could leave it on, but probably would not last permanently. I don't see how you could use glue; it is intended to be mounted only with the double stick tape provided in the box. Browse other replies who have said that they applied it directly to dry wall (sheet rock).
BTW another response said:  “Yes but you can run into a moisture issue. We tried it and it it worked well except that the A/C created condensation on the plastic which eventually pooled up between the window and the plastic creating mold”

**Q: How does this hold up compared to frost king?**
A: This holds up much better then frost king... I have never had frost king last a whole season on my windows but the 3M lasts no matter how long the cold season has lasted.  I will never go back to using Frost King again.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy Peasy! Even for me!
*by P***R on November 29, 2014*

This could have gone one of two ways. Either it was going to be a huge pain in my butt to do and I'd end up just tossing the whole mess out in a big plastic ball of sweaty frustration, or it would just work. Well, I'm here to tell you that this stuff works! I have two gigantic 3'x7' "picture windows" that have zero window coverings. They face my lake view. I was using a blanket to cover them which, while it worked, made the house dark, and really, who wants to spend 6 months out of the year not lookin' at the view I bought this house for?!?!... So, this was my cheap first attempt at getting rid of the blankets and not spending any money (yet) on window treatments. There was PLENTY of plastic and PLENTY of tape for my use. In fact I only used one roll of tape. I thought it would be messy, clingy, wrapping up on itself, sticking to what it wasn't supposed to, and in the end, hard to see out of. It was/is NONE of those things. I am pretty handy for a gal, so this was within my abilities, but really, as long as you have full range of motion (can hold your hands up to apply the tape and the plastic), then you are "skilled" enough to apply this. I can see through it. It was easy to make minor adjustments on the outside edges once applied. I used the hair dryer, and it did "melt" away the small tiny ripples (they were barely noticeable to begin with). The only "tip" I have is before putting the tape on the window (sticky on the window side, paper on the side facing you), unpeel part of the paper and bend it in towards the tape to make a little folded tab so that when you are ready to pull the paper off you can just grab the little "tab" and rip it off. My first window I did not do this and I think I spent more time trying to get that danged paper off the back than I did on any other aspect of the project. And it was by far the only frustrating part of the entire project. I have attached some photos to show you how well you can see through it, and how well it works on a relatively large window. I live in a 1970 mobile, so every little seal counts. To be honest, I don't even see me pulling it off in the summer. I have a heat pump, and this will help keep the cool air in on those hot days. Since I can see out of it, and you really don't know it's there unless someone points it out, why take it down and do it again 6 months later? If you are on the fence, jump off and just do it.

### ⭐⭐⭐⭐⭐ A Winter Lifesaver
*by M***O on December 9, 2025*

Living in a region with chilly winters, drafty windows can turn a cozy home into an energy-sapping nightmare. That's where the 3M Indoor Window Insulation Kit comes in. Designed to create an insulating air pocket between your window pane and your living space, this particular kit caters to five standard-sized windows, each up to 3ft x 5ft. Having used similar 3M kits for years, I can confidently say this product is a surprisingly effective and budget-friendly solution for combating cold drafts and high heating bills. Product Overview & Key Features: The 3M Indoor Window Insulation Kit for 5 windows includes: 5 Sheets of High-Clarity Shrink Film: Each measuring approximately 42" x 62" (designed for windows up to 3'x5' with sufficient overlap for taping). 1 Roll of 3M Scotch Brand Double-Sided Acrylic Window Kit Tape: This is crucial – 3M's tape is generally superior to generic alternatives, offering strong adhesion without excessive residue upon removal. The core principle is simple: clean your window frames, apply the double-sided tape, adhere the film, and then use a hairdryer to shrink it taut and clear. This creates an invisible barrier that significantly reduces heat loss. Performance & Effectiveness (5/5 Stars): This is where the 3M kit truly shines. The difference it makes is nothing short of dramatic. Draft Elimination: Cold drafts are instantly eliminated. You'll notice the immediate absence of that chilling breeze near your windows. Temperature Increase: The surface temperature of the interior glass rises noticeably. Rooms that felt perpetually cold, especially near windows, become significantly warmer and more consistent in temperature. Energy Savings: By reducing heat loss, your furnace won't have to work as hard, directly translating into lower heating bills. This kit pays for itself, often within a month or two, depending on your energy costs and the severity of your drafts. Noise Reduction (Minor): While not its primary purpose, the added layer of film can offer a slight, subtle reduction in outside noise. Installation (3.5/5 Stars): Installation is generally straightforward, but it requires patience, attention to detail, and a bit of a knack to get it perfect. Preparation is Key: Start with meticulously clean, dry window frames. Any dust, dirt, or grease will compromise the tape's adhesion. This step cannot be skipped! Applying the Tape: Apply the double-sided tape smoothly and continuously around the entire perimeter of the window frame. Ensure it's firmly pressed down and there are no gaps. Applying the Film: This is arguably the trickiest part, especially for larger windows. Unroll the film carefully, ensuring it doesn't stick to itself or the floor. Start by adhering it to the top tape strip, then slowly work your way down the sides, keeping it as taught and wrinkle-free as possible. It's often easier with two people for bigger windows. Don't press too hard until you're sure of the positioning, as readjusting can be messy. Shrinking with Heat: Using a hairdryer (a heat gun on a low setting also works, but be extra careful), starting from one corner, gently wave the heat across the film. You'll see it instantly tighten, smooth out wrinkles, and become crystal clear. Keep the hairdryer moving to avoid overheating and potentially tearing the film. Don't aim for absolute perfection initially; the shrinking process does most of the work. Tips for Success: Work Clean: A dust-free environment prevents unsightly specks getting trapped under the film. Measure Twice: Ensure you have adequate film overlap for the tape. Be Patient: Don't rush the process, especially the film application and shrinking. Hairdryer Technique: Use steady, sweeping motions. Overheating can cause holes. Appearance (4/5 Stars): When installed correctly, the film shrinks to be remarkably clear and virtually invisible from a distance. It creates a smooth, almost glass-like surface. Up close, you might notice a slight distortion or a faint sheen, but for the most part, it effectively disappears. However, if not shrunk properly, if dust gets trapped, or if the film is stretched unevenly, it can be noticeable. It's a temporary solution, so while it doesn't add to your decor, it doesn't detract significantly either. Durability & Removal (4/5 Stars): The film is surprisingly robust once shrunk and can easily last an entire heating season. It resists minor bumps and pokes without tearing easily. When spring arrives, removal is generally simple. Just peel off the film and then the tape. 3M's tape is designed to minimize residue, but on older, porous paint or unfinished wood, you might find some adhesive residue that requires a gentle cleaner (like Goo Gone or rubbing alcohol) to remove. Always test a small, inconspicuous area first. Value for Money (5/5 Stars): Given its effectiveness in reducing heating costs and improving comfort, this kit offers exceptional value. For a relatively small investment, you get a significant return in terms of warmth and savings. It's an ideal solution for renters who can't replace windows, or homeowners looking for a cost-effective alternative to expensive window upgrades.

### ⭐ Not sure why it got great reviews
*by C***N on October 25, 2013*

I know how reviews go- I know that usually you have that one person who got a dud or was temperamental or had bad intentions and I take one bad review in a slue of many with the gain of salt. I also seldom write reviews and I know that people are more motivated to write a review based on a negative experience than a positive one! I usually write about good experiences. This was not such an experience. I do agree with the other reviewers that it was a pain to do with their directions and the cutting was problematic, etc. I remember buying the packages for my storm doors, not realizing that it would cover both until I had already bought 2. Perhaps that was my error. The rest, I'm sorry to say, must have been the company's. I covered a large storm/patio double door, one quite large window that took up much of the wall (with some creativity on my part) and 3 other, over-sized windows (I say over-sized because they are a little wider than some and definitely longer. "luxury windows" except for the fact that they leak air like you wouldn't believe!). I spent some money here, folks. What is that? A storm door, lets say 2 or 3 sheets for the wall sized window (maybe a triple window size) plus 3 more? It didn't break the bank but hey- I wasn't buying new windows. It shouldn't have come close to breaking any bank. I have convinced myself that this helped in some way but honestly I'm not sure. I really hardly ever say I will never buy this product again but I will not. I feel like this was such crap. I had faith in 3M but they obviously spent all their money in the packaging of the product. It did not take long for me to notice that I had lines or wrinkles in the paper. This usually meant that a spot had come unstuck or needed to be heated more. I found this material very temperamental to the blowdryer. I remember my family using these in the 90's. I watched them use it and I've used it since then. You would think that products would have improved over time(non-appliances specifically). If I tried to get wrinkles out of stubborn spots, it risked being ruined. So some of the film had creases which I feel that yes, my neighbors might have noticed from the outside on a sunny day. Not my preference as the window film became more obvious to onlookers as time went by! Most of the time when the wrinkles or creases would show up, it was because the product came unstuck. I read every bit of the information. I also installed enough of them and not in the same day (because who the heck has that kind of time?) so you would think that at least the last few that I did would turn out flawless. It was such a hassle to babysit these windows and when it was obvious that they weren't sticking I just sort of threw in the towel because I was so annoyed with all the time I wasted trying to monitor something so simple and stupid. A person should be able to put something up in their home and then trust that it does what it's supposed to do. I don't remember when I gave up on each window but I know that it didn't take long before corners or sections of sides were having to be redone over and over again, so obviously they were losing their adhesiveness. I tried to mend by pulling off those sides and re-taping but again, it only lasted a matter of time. I swear, this was such an annoying experience. As if putting this on your window isn't bad enough. I feel like this company really takes advantage of people who cannot afford or are unwilling to replace whole windows and insulation. They prey on people who actually need a quick fix. We were still dreadfully cold in our basement area with so many windows leaking heat. It was ridiculous. By the end of the season, removing the film from the windows was just upsetting because every single window had it coming off - not just a little. It was bad! I'm experienced in using these. I've had them since I can remember. I've never had this bad an experience. Never again. If you are smart, you'll shop around for a different brand. PS when I did my review search on this product, I had already heard that their tape sucked. I tried it on one window and it was true. I got the DUCT brand and the tape was better. Perhaps their film is better, too? Who's to say but what I can tell you is that either they make cheap tape AND film or people thought that the tape was the problem but it was the actual film. It also means that there are bigger and better products out there. This year, I'm back on the market. I hope no one from 3M calls me to offer me free film or some other product perk based on this review because I'll will decline with confidence.

## Frequently Bought Together

- 3M Indoor Window Insulation, Insulator Kit for 2 Windows 3ft x 5ft, Keeps Cold Air Out and Warm Air In, Includes Heat Shrink Window Film and Scotch Window Film Mounting Tape (2120W-6)
- 3M Window Film Mounting Tape, 1/2" in x 13.8 yd Roll, For Use with 3M Window Insulator Kits, Use on Painted Wood, Aluminum, and Vinyl-Clad Molding and More, Indoor Use, Easy to Apply (2145C)
- 3M Outdoor Patio Door Clear Insulation Kit, Heat or Cold Window Insulation Kit for Large Windows and Sliding Doors, 1-Door Kit, 7 ft. X 9.3 ft.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.fr/products/12834013-3m-indoor-window-insulation-insulator-kit-for-2-windows-3ft](https://www.desertcart.fr/products/12834013-3m-indoor-window-insulation-insulator-kit-for-2-windows-3ft)

---

*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-02-24*