---
product_id: 1576809
title: "18403 Fin Straightener, White"
price: "€ 51.68"
currency: EUR
in_stock: true
reviews_count: 13
url: https://www.desertcart.fr/products/1576809-18403-fin-straightener-white
store_origin: FR
region: France
---

# Compact 3-1/8 inch heads 12 fin spacing options 2 interchangeable comb heads 18403 Fin Straightener, White

**Price:** € 51.68
**Availability:** ✅ In Stock

## Summary

> 🔧 Straighten your fins, sharpen your edge.

## Quick Answers

- **What is this?** 18403 Fin Straightener, White
- **How much does it cost?** € 51.68 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/1576809-18403-fin-straightener-white)

## 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

- • **Durable Build:** High-quality nylon heads and ribbed plastic handle ensure long-lasting performance under tough conditions.
- • **Compact & Ergonomic:** Slim 3-1/8 inch nylon heads and ribbed 3-1/2 inch handle fit tight spaces with ease and comfort.
- • **All-in-One Precision:** 12 fin spacing options cover virtually every finned application, eliminating the need for multiple tools.
- • **Dual Comb Versatility:** Two comb heads with 6 sizes each provide unmatched adaptability for home, auto, and commercial use.
- • **Space-Saving Efficiency:** Replaces a dozen tools in your kit, streamlining your workflow and toolbox organization.

## Overview

The Robinair 18403 Fin Straightener is a professional-grade tool featuring 12 fin spacing options via two interchangeable comb heads, designed for precise cleaning and straightening of HVAC, automotive, and commercial finned components. Its compact, durable nylon heads and ergonomic handle enable easy access to tight spaces, making it an essential, space-saving addition to any technician’s toolkit.

## Description

Robinair's No. 18403 Fin Straightener tool, with 12 different fin spacing options, is the perfect tool for cleaning and straightening a variety of commercial, home, and automotive finned applications like: condensers, evaporators, and more. This versatile tool replaces a dozen separate tools in your toolbox, taking up less space and making finding the right comb fast and easy. The compact design fits into tight, confined spaces: durable nylon straightener heads are only 3-1/8 inches in diameter; ribbed plastic handle is only 3-1/2 inches long. Includes two interchangeable comb heads featuring 6 clearly marked comb sizes (in fins per inch) per head for a total of 12 - enough fin straightening options to fit almost any situation. Comb head #1: 8, 9, 10, 12, 14, and 15 fins per inch. Comb head #2: 10.5, 11, 13, 18, 20, and 22 fins per inch. Robinair, a Bosch Automotive Service Solutions brand, is a global leader in service tools and equipment based in Owatonna, Minnesota. Robinair is recognized throughout the world as the quality and performance leader in AC/R evacuation tools and this position has led to its success with the full range of products that serve the heating/ventilating/air conditioning/refrigeration (HVAC-R) and mobile markets, which includes the automotive aftermarket along with other industries such as agriculture and construction.

Review: Works very well and worth the money. - This came today, and I immediately put it to work. My air conditioner fins were pretty dinged up from the previous owner. It wasn’t putting out very cold air, and after the shop said it was charged correctly and working, I started digging in to see what was wrong. The ac condenser and other radiators were plugged up between them, plus the fins were dinged up. After cleaning the condenser and radiator, the ac improved. After I straightened the fins, the ac is now putting out cold air like it should. Note: be patient, it takes time to do this. Here is what I found works best: 1) For fins that are very bent, I carefully used my pocket knife to pre straighten. 2) Go slow and use a gentle rocking motion as you comb it out. This helps get the fins spaced properly. 3) Go over the damaged area several times until the fins are spaced evenly. 4) Push it in as far as it will go. You do have to pull out a bit to get around the pipes. By going deep, the tool pulled out lots of sand and small gravel, as well as bug parts from between the fins. I’m putting a screen in front of the condenser next. I was concerned I would break the teeth, but they held up well, even with moderate pressure on them. Well worth the money and a couple of hours time compared to replacing the condenser. Great tool.
Review: Too expensive for what it is, lost one star - Works fine, will do the jone

## Features

- Robinair's Fin Straightener tool, with 12 different fin spacing options, is ideal for cleaning and straightening a variety of home and auto finned applications like: condensers, evaporators, and more
- Compact design fits into tight, confined spaces: durable nylon straightener heads are only 3-1/8 inches in diameter; ribbed plastic handle is only 3-1/2 inches long
- Includes two interchangeable comb heads featuring 6 clearly marked comb sizes (in fins per inch) per head for a total of 12 - enough fin straightening options to fit almost any situation
- Comb head #1: 8, 9, 10, 12, 14, and 15 fins per inch
- Comb head #2: 10.5, 11, 13, 18, 20, and 22 fins per inch

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Robinair |
| Brand | Robinair |
| Model | 18403 |
| Item Weight | 0.006 ounces |
| Product Dimensions | 6 x 11.1 x 0.4 inches |
| Item model number | 18403 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 18403 |

## Images

![18403 Fin Straightener, White - Image 1](https://m.media-amazon.com/images/I/61gPTOHkldL.jpg)
![18403 Fin Straightener, White - Image 2](https://m.media-amazon.com/images/I/81I4BeOS-xL.jpg)
![18403 Fin Straightener, White - Image 3](https://m.media-amazon.com/images/I/114RfypmYXL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works very well and worth the money.
*by J***C on July 7, 2019*

This came today, and I immediately put it to work. My air conditioner fins were pretty dinged up from the previous owner. It wasn’t putting out very cold air, and after the shop said it was charged correctly and working, I started digging in to see what was wrong. The ac condenser and other radiators were plugged up between them, plus the fins were dinged up. After cleaning the condenser and radiator, the ac improved. After I straightened the fins, the ac is now putting out cold air like it should. Note: be patient, it takes time to do this. Here is what I found works best: 1) For fins that are very bent, I carefully used my pocket knife to pre straighten. 2) Go slow and use a gentle rocking motion as you comb it out. This helps get the fins spaced properly. 3) Go over the damaged area several times until the fins are spaced evenly. 4) Push it in as far as it will go. You do have to pull out a bit to get around the pipes. By going deep, the tool pulled out lots of sand and small gravel, as well as bug parts from between the fins. I’m putting a screen in front of the condenser next. I was concerned I would break the teeth, but they held up well, even with moderate pressure on them. Well worth the money and a couple of hours time compared to replacing the condenser. Great tool.

### ⭐⭐⭐⭐ Too expensive for what it is, lost one star
*by E***D on September 5, 2025*

Works fine, will do the jone

### ⭐⭐⭐⭐⭐ Great Purchase for An Auto/Truck technician
*by J***S on August 25, 2025*

Strong tool and an important tool to really complete the job

## Frequently Bought Together

- Robinair 18403 Fin Straightener, White
- Malco FST2 Fin Straightening Tool
- Supco FCR6 Fin Comb Ring

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-05-13*