---
product_id: 15839480
title: "Thermwell Frost King ELB78H Self-Sealing 3/8-Inch Wall for Tees and Elbows, Elbow fits 3/4\" Copper Pipe, 1 Count (Pack of 1)"
brand: "thermwell"
price: "€ 0.43"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.fr/products/15839480-thermwell-frost-king-elb78h-self-sealing-3-8-inch-wall
store_origin: FR
region: France
---

# Energy-saving insulation 3/4-inch pipe elbow fit Self-sealing tight foam seal Thermwell Frost King ELB78H Self-Sealing 3/8-Inch Wall for Tees and Elbows, Elbow fits 3/4" Copper Pipe, 1 Count (Pack of 1)

**Brand:** thermwell
**Price:** € 0.43
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ Seal the deal on energy savings with Thermwell Frost King!

## Quick Answers

- **What is this?** Thermwell Frost King ELB78H Self-Sealing 3/8-Inch Wall for Tees and Elbows, Elbow fits 3/4" Copper Pipe, 1 Count (Pack of 1) by thermwell
- **How much does it cost?** € 0.43 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/15839480-thermwell-frost-king-elb78h-self-sealing-3-8-inch-wall)

## Best For

- thermwell enthusiasts

## Why This Product

- Trusted thermwell brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Energy & Cost Saver:** Insulates elbows to reduce heat loss, cutting your energy bills.
- • **Lightweight & Durable:** Made from pre-slit polyethylene foam for long-lasting performance without bulk.
- • **Effortless Self-Sealing:** Peel off protective paper and lock in a tight, durable seal instantly.
- • **Precision Fit, Zero Gaps:** Square ends guarantee a snug, leak-proof connection every time.
- • **Compact & Ready to Install:** Slim 1.87 x 3.5-inch design fits seamlessly into your plumbing setup.

## Overview

The Thermwell Frost King ELB78H is a 3/4-inch copper pipe elbow insulated with pre-slit polyethylene foam that self-seals upon removing its protective paper. Designed with square ends for a perfect fit, it effectively reduces heat loss, helping professionals save energy and money while ensuring a durable, lightweight, and easy-to-install plumbing solution.

## Description

Product Description          3/4-Inch Pipe Elbow. This elbow is made from pre-slit, tubular, polyethylene foam. This product is self-sealing and forms a tight seal when the protective paper is removed. The square ends ensure a perfectly, tight fit. Helps to save both energy and money.             Manufacturer Contact Information          1-800-526-5265

## Features

- The product is manufactured in china
- 3/4-Inch Pipe Elbow
- Elbow Is Made From Pre-slit Tubular Polyethylene Foam
- Product Is Self-sealing, And Forms A Tight Seal When The Protective Paper Is Removed
- The Square Ends Ensure A Perfectly Tight Fit
- Helps To Save Both Energy, And Money

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Size | 1 Count (Pack of 1) |
| Material | Copper |
| Brand | Thermwell |
| Color | Copper |
| Item dimensions L x W x H | 1.87 x 3.5 x 3.5 inches |
| Connector Type | Elbow |
| Exterior Finish | Copper |
| Thread Type | NPT |
| Item Weight | 0.5 Ounces |
| Number of Pieces | 1 |
| Global Trade Identification Number | 00077578054810 |
| Manufacturer | THERMWELL PRODUCTS |
| UPC | 077578054810 |
| Part Number | ELB78H |
| Item Weight | 0.5 ounces |
| Product Dimensions | 1.87 x 3.5 x 3.5 inches |
| Item model number | ELB78H |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Size:** 1 Count (Pack of 1)
- **Material:** Copper
- **Brand:** Thermwell
- **Color:** Copper
- **Item dimensions L x W x H:** 1.87 x 3.5 x 3.5 inches
- **Connector Type:** Elbow
- **Exterior Finish:** Copper
- **Thread Type:** NPT
- **Item Weight:** 0.5 Ounces
- **Number of Pieces:** 1

## Images

![Thermwell Frost King ELB78H Self-Sealing 3/8-Inch Wall for Tees and Elbows, Elbow fits 3/4" Copper Pipe, 1 Count (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/71YTvv+zaAL.jpg)

## Questions & Answers

**Q: how many pieces/units does it include?**
A: It's a one piece elbow.

**Q: Are these elbows indoor-outdoor or only indoor?**
A: I installed these outdoors as part of the insulation for my air conditioner back in March (about 6 months ago.)  I wrapped all of it with Shurtape LS 300 HVAC Line Set Tape. Even though it gets direct sun for a couple of hours in the middle of each day, it all still looks like new.  They have not split at the 'elbow seam'.

**Q: Can this be used outdoors for air conditioning pipe?**
A: I used them on my air conditioning pipe; they worked well.

## Customer Reviews

### ⭐⭐⭐⭐⭐ HVAC pipe foam elbow
*by J***1 on June 21, 2025*

Perfect fit!

### ⭐⭐⭐⭐⭐ Quick and Easy to install.
*by P***. on February 24, 2025*

Quick and easy install and does the job.

### ⭐⭐⭐⭐ Easy to install
*by J***N on September 14, 2023*

Good price

## Frequently Bought Together

- Thermwell Frost King ELB78H Self-Sealing 3/8-Inch Wall for Tees and Elbows, Elbow fits 3/4" Copper Pipe, 1 Count (Pack of 1)
- Duck Brand Foam Pipe Covers, Pipe Insulation Foam Tubes for Hot and Cold Water Pipes, Pre Slit and Self Sealing Adhesive Edge, 0.75 in. x 1 Ft., 6 Sticks Per Package, 6 Feet Total, Black
- Duck Brand Insulating Foam Pipe Covers, 0.75-Inch by 3-Feet, Pack of 4 Sticks, 1285241

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---

*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-01-24*