---
product_id: 311554908
title: "39241B-YF Total Leak Stop and U/V Dye, 1 oz (HFC Free BOV Can with 1234yf Adapter, Retail Box)"
brand: "tsi supercool"
price: "$92.31"
currency: USD
in_stock: true
reviews_count: 5
category: "Tsi Supercool"
url: https://www.desertcart.us/products/311554908-39241b-yf-total-leak-stop-and-u-v-dye-1
store_origin: US
region: United States of America
---

# 1-can, 1-vehicle easy fix Stops small AC leaks fast Polymer-free, no clogging 39241B-YF Total Leak Stop and U/V Dye, 1 oz (HFC Free BOV Can with 1234yf Adapter, Retail Box)

**Brand:** tsi supercool
**Price:** $92.31
**Availability:** ✅ In Stock

## Summary

> ❄️ Seal the deal, stay cool, and never sweat leaks again!

## Quick Answers

- **What is this?** 39241B-YF Total Leak Stop and U/V Dye, 1 oz (HFC Free BOV Can with 1234yf Adapter, Retail Box) by tsi supercool
- **How much does it cost?** $92.31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/311554908-39241b-yf-total-leak-stop-and-u-v-dye-1)

## Best For

- tsi supercool enthusiasts

## Why This Product

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

## Key Features

- • **System-Safe Formula:** Polymer-free technology ensures zero harm or clogging to your AC components and recovery machines.
- • **Trusted Performance:** Backed by US Patent No. 8,047,009 and proven by real users for lasting AC coolness.
- • **Leak-Proof Confidence:** Engineered to seal evaporators, condensers, hoses, gaskets, and seals with precision.
- • **Effortless Application:** One can treats one vehicle—simple, no-fuss maintenance for busy pros.
- • **Eco-Friendly Innovation:** Patented HFC-FREE aerosol formula aligns with modern environmental standards.

## Overview

TSI Supercool 39241B-YF Total Leak Stop and U/V Dye is a 1-ounce, HFC-free aerosol designed to quickly seal small leaks in automotive AC systems without clogging components. Featuring patented polymer-free technology and a convenient 1-can-per-vehicle formula, it ensures safe, eco-friendly, and effective leak repair for evaporators, condensers, hoses, gaskets, and seals.

## Description

TSI Supercool 39241B-YF Total Leak Stop and U/V Dye - "HFC Free" BOV Can with 1234yf Adapter - 1-Ounce - Retail Box is engineered to stop small leaks in evaporators, condensers, hoses, gaskets, and seals. It does not contain polymers, so it will not harm, or clog AC System Components, reclamation, or recovery machines. It offers a no fuss 1-Can treats 1-Vehicle option. It features a patented technology HFC-FREE aerosol. US PATENT NO. 8, 047, 009. Foreign patents pending.

Review: Funciona - Funciona 100%
Review: It’s so easy to use - We fitted a new ac pipe to the car and got it recharged by a garage and it only lasted three days. So we bought and used the ac leak stop, then refilled the system and it’s been working ever since. It’s so easy to use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | TSI Supercool |
| Item dimensions L x W x H | 9.4 x 8.6 x 14.7 centimeters |
| Item form | Spray |
| Item weight | 1 Ounces |
| Style | 1234yf Adapter |
| UPC | 672264043262 |

## Product Details

- **Brand:** TSI Supercool
- **Item dimensions L x W x H:** 9.4 x 8.6 x 14.7 centimeters
- **Item form:** Spray
- **Item weight:** 1 Ounces
- **Style:** 1234yf Adapter

## Images

![39241B-YF Total Leak Stop and U/V Dye, 1 oz (HFC Free BOV Can with 1234yf Adapter, Retail Box) - Image 1](https://m.media-amazon.com/images/I/71hJykbeHhL.jpg)

## Available Options

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

## Questions & Answers

**Q: Can you use in home refrigator**
A: It only works for HFO1234YF refrigerant

**Q: Does this have refrigerant in it?**
A: No it does not have refrigerant.

**Q: Anybody had success with this?**
A: yes, had a leak in the system with a dealer estimate of over 1k to fix.  First use of this and leak was fixed

**Q: Any tricks to get it to pump inside the system? . It doesn't have enough pressure**
A: I'm not aware of any tricks.  I think you just have to apply it when the pressure in your system is already pretty low.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Funciona
*by M***Z on 25 April 2026*

Funciona 100%

### ⭐⭐⭐⭐⭐ It’s so easy to use
*by S***. on 12 May 2018*

We fitted a new ac pipe to the car and got it recharged by a garage and it only lasted three days. So we bought and used the ac leak stop, then refilled the system and it’s been working ever since. It’s so easy to use.

### ⭐⭐⭐⭐⭐ Great
*by J***M on 12 April 2026*

Great

## Frequently Bought Together

- TSI Supercool 39241B-YF Total Leak Stop and U/V Dye, 1 oz (HFC Free BOV Can with 1234yf Adapter, Retail Box)
- ZeroR® Genuine R1234YF in 8oz SSV Cans | 3 Cans with Zeror Service Label

---

## 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.us/products/311554908-39241b-yf-total-leak-stop-and-u-v-dye-1](https://www.desertcart.us/products/311554908-39241b-yf-total-leak-stop-and-u-v-dye-1)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-04*