---
product_id: 638505805
title: "RACO Sigma Car Air Conditioner Stop leak Seal 80g | Repair R134A Refrigerant and Oil Leaks in Air Conditioning Systems + Open Valve CT-339"
brand: "raco"
price: "€ 24.90"
currency: EUR
in_stock: true
reviews_count: 3
category: "Raco"
url: https://www.desertcart.gr/products/638505805-raco-sigma-car-air-conditioner-stop-leak-seal-80g-repair
store_origin: GR
region: Greece
---

# Built-in safety valve with leak-proof operation Lowers AC outlet temp, boosts cooling efficiency Universal UV leak detection dye - 4x 0.25oz doses RACO Sigma Car Air Conditioner Stop leak Seal 80g | Repair R134A Refrigerant and Oil Leaks in Air Conditioning Systems + Open Valve CT-339

**Brand:** raco
**Price:** € 24.90
**Availability:** ✅ In Stock

## Summary

> ❄️ Seal leaks, boost cool — keep your ride chill and leak-free!

## Quick Answers

- **What is this?** RACO Sigma Car Air Conditioner Stop leak Seal 80g | Repair R134A Refrigerant and Oil Leaks in Air Conditioning Systems + Open Valve CT-339 by raco
- **How much does it cost?** € 24.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/638505805-raco-sigma-car-air-conditioner-stop-leak-seal-80g-repair)

## Best For

- raco enthusiasts

## Why This Product

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

## Key Features

- • **User-Friendly Operation:** Hand-operated punch valve and built-in bottle opener make recharging your R134A refrigerant hassle-free.
- • **Precision Leak Detection:** Includes four 0.25oz applications of universal UV dye for pinpointing refrigerant leaks with ease.
- • **Dual-Thread Compatibility:** Fits standard AC systems with side thread 11mm and bottom thread 14mm for versatile installation.
- • **Safety-First Valve Design:** Equipped with a built-in safety valve ensuring leak-proof, reliable operation every time.
- • **Enhanced Cooling Performance:** Effectively reduces air outlet temperature, delivering noticeably cooler air and improved AC efficiency.

## Overview

The RACO Sigma Car Air Conditioner Stop Leak Seal (80g) is a professional-grade AC repair solution designed to detect and seal refrigerant and oil leaks in R134A systems. Featuring four precise UV dye applications, a built-in safety valve, and dual-thread compatibility, it extends AC lifespan by reducing friction and lowering outlet temperatures. Its durable brass and steel construction, combined with an easy-to-use hand punch valve and bottle opener, makes it an essential tool for maintaining peak cooling performance and preventing costly repairs.

## Description

Features: Serve as a bottle opener for R134a refrigerant Built in safety valve and leak-proof operation With hand operated punch / valve control Brass fittings, constructed sold, heavy duty, designed to last Specifications: Shape: M14 / 1/4" Connection: female thread Material: steel and copper Color: red + golden Weight: 75g approx. Side Thread Diameter : 11mm / 0.43" Bottom Thread Diameter : 14mm / 0.55" Package included: 1 x Auto AC Can Tap Valve Bottle Opener Directions for use ; 1.Turn the silver twist valve all the way in clockwise direction. 2.Shake the can well. 3.Attach the delivery system to the can by screwing the red adapter to the top of the can, puncturing the protective film. 4.Start the car and turn the AC to maximum cooling. 5.Attach the quick coupler to the low-side service port. 6.Once the quick coupler is attached, check the gauge for accurate pressure reading. See the table to compare outside temperature to sufficient pressure in the system. If the gauge reading shows deficient pressure, slowly turn the twist valve counter-clockwise to release product. 7.Hold the can in an upright position and gently shake it every 5 seconds while the system is being charged. It should take 5-12 minutes for the can to be empty. 8.Check the gauge throughout the process to measure psi. The gauge reading is only accurate when the compressor is cycling. DO NOT OVERCHARGE! If the system pressure is still low, add more R-134A.

Review: it works for small leakage - surprisingly this product really works to stop small leakage on my AC system :)
Review: Works very well - I had a huge leakage, the gas used to run out in less than 1 day, after 1 week of using, gas is fine and Ac is cool

## Features

- Contains four one quarter ounce applications of universal air conditioning system UV leak detection dye
- VALVE : uilt in safety valve and leak-proof operation
- VALVE : Dimensions :S ide Thread Diameter:11mm / 0.43". Bottom Thread Diameter: 14mm / 0.55"
- VALVE : Function : Serve as a bottle opener for R134a refrigerant
- VALVE : Easy to Operate : With hand operated punch / valve control .Connection: female thread
- RACO SIGMA : Extend the life of air conditioners: Effectively reduce the frictional resistance of air conditioners
- RACO SIGMA : Lift cooling: Effectively reduce the air outlet temperature of the air conditioner and improve the cooling effect of the air conditioner
- //CONTACT US FOR BULK QUANTITY\

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D5WDRG52 |
| ASIN  | B0D5WDRG52 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #16,656 in Automotive ( See Top 100 in Automotive ) #11 in Automotive AC Leak Detection Tools |
| Country of origin  | China |
| Customer Reviews | 3.6 3.6 out of 5 stars (14) |
| Customer reviews | 3.6 3.6 out of 5 stars (14) |
| Date First Available | 2 June 2024 |
| Date First Available  | 2 June 2024 |
| Included components | tape |
| Item Weight | 200 g |
| Manufacturer | BITOP |
| Manufacturer  | BITOP |
| Package Dimensions | 6.5 x 6 x 4 cm; 200 g |
| Package Dimensions  | 6.5 x 6 x 4 cm; 200 g |
| Power source type | hand_powered |

## Images

![RACO Sigma Car Air Conditioner Stop leak Seal 80g | Repair R134A Refrigerant and Oil Leaks in Air Conditioning Systems + Open Valve CT-339 - Image 1](https://m.media-amazon.com/images/I/61KoNK76jOL.jpg)
![RACO Sigma Car Air Conditioner Stop leak Seal 80g | Repair R134A Refrigerant and Oil Leaks in Air Conditioning Systems + Open Valve CT-339 - Image 2](https://m.media-amazon.com/images/I/618wEVmHg1L.jpg)
![RACO Sigma Car Air Conditioner Stop leak Seal 80g | Repair R134A Refrigerant and Oil Leaks in Air Conditioning Systems + Open Valve CT-339 - Image 3](https://m.media-amazon.com/images/I/51V+ekaXmoL.jpg)
![RACO Sigma Car Air Conditioner Stop leak Seal 80g | Repair R134A Refrigerant and Oil Leaks in Air Conditioning Systems + Open Valve CT-339 - Image 4](https://m.media-amazon.com/images/I/51fvhHEM-CL.jpg)
![RACO Sigma Car Air Conditioner Stop leak Seal 80g | Repair R134A Refrigerant and Oil Leaks in Air Conditioning Systems + Open Valve CT-339 - Image 5](https://m.media-amazon.com/images/I/61w5bfG8D+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ it works for small leakage
*by A***C on 10 February 2025*

surprisingly this product really works to stop small leakage on my AC system :)

### ⭐⭐⭐⭐⭐ Works very well
*by M***S on 13 September 2024*

I had a huge leakage, the gas used to run out in less than 1 day, after 1 week of using, gas is fine and Ac is cool

### ⭐ good fixed my split ac
*by M***F on 5 October 2024*

good fixed my split ac

## Frequently Bought Together

- RACO Bitop Car Air Conditioner Stop leak Seal 80g | Repair R134A Refrigerant and Oil Leaks in Air Conditioning Systems + Open Valve CT-339
- Lucas Oil 10278 Engine Stop Leak - 1 Quart
- Wynn's 50664 325ml Engine Stop Leak

---

## 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.gr/products/638505805-raco-sigma-car-air-conditioner-stop-leak-seal-80g-repair](https://www.desertcart.gr/products/638505805-raco-sigma-car-air-conditioner-stop-leak-seal-80g-repair)

---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-24*