--- product_id: 311554904 title: "TSI Supercool 39241B-YF Total Leak Stop and U/V Dye, 1 oz (HFC Free BOV Can with 1234yf Adapter, Retail Box)" brand: "tsi supercool" price: "R1968" currency: ZAR in_stock: true reviews_count: 5 category: "Tsi Supercool" url: https://www.desertcart.co.za/products/311554904-tsi-supercool-39241b-yf-total-leak-stop-and-u-v store_origin: ZA region: South Africa --- # 1-can, 1-vehicle easy fix Stops small AC leaks fast Polymer-free, no system clog TSI Supercool 39241B-YF Total Leak Stop and U/V Dye, 1 oz (HFC Free BOV Can with 1234yf Adapter, Retail Box) **Brand:** tsi supercool **Price:** R1968 **Availability:** ✅ In Stock ## Summary > ❄️ Seal the deal on leaks before they cool your ride! ## Quick Answers - **What is this?** TSI Supercool 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?** R1968 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/311554904-tsi-supercool-39241b-yf-total-leak-stop-and-u-v) ## 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 - • **Effortless Application:** One 1-ounce can treats a full vehicle, making AC maintenance quick and straightforward. - • **Safe & System-Friendly:** Polymer-free formula ensures zero damage or clogging to AC components and recovery machines. - • **Versatile Compatibility:** Engineered for evaporators, condensers, hoses, gaskets, and seals using R-1234yf refrigerant. - • **Eco-Conscious Innovation:** HFC-free patented aerosol technology aligns with modern environmental standards. - • **Precision Leak Detection:** Highly visible U/V dye pinpoints leaks instantly for hassle-free diagnostics. ## Overview The TSI Supercool 39241B-YF is a 1-ounce, HFC-free aerosol spray designed to stop small leaks in vehicle AC systems using R-1234yf refrigerant. Featuring a polymer-free formula and patented technology, it safely protects system components while providing a simple, one-can solution for professional-grade leak detection and repair. ## 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: works as advertised - Dye is highly visible and I was able to rapidly pinpoint the leak in my AC system. Worked like a champ. I am highly pleased. Please remember that you should not cross contaminate different coolant types. This one is for R-1234yf Review: product cheap junk - does not seal up at connection point on low side of ac hose dye was everywhere on top of engine not worth the money.have to wash down engine bay and start over ,had to pull vacuum and start over. product junk ## Features - Contains gas under pressure; may explode if heated. - Engineered To Stop Small Leaks in Evaporators, Condensers, Hoses, Gaskets, and Seals - Features a Formula that Does Not Contain Polymers so it Will Not Harm or Clog AC System Components, Reclamation Or Recovery Machines - Offers a Simple 1-Can Treats 1-Vehicle Option - Features Patented Technology HFC-FREE Aerosol US Patent No. 8, 047, 009. Foreign Patents Pending - Engineered to Supercool' s Highest Standards ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01981J9DU | | Brand | TSI Supercool | | Compatible Material | Plastic | | Customer Reviews | 3.7 out of 5 stars 275 Reviews | | Global Trade Identification Number | 00672264043262 | | Included Components | TSI Supercool 39241B-YF Total Leak Stop and U/V Dye, 1 oz (HFC Free BOV Can with 1234yf Adapter, Retail Box) | | Item Dimensions | 9.4 x 8.6 x 14.7 centimetres | | Item Form | Spray | | Item Type Name | TSI Supercool 39241B-YF Total Leak Stop and U/V Dye, 1 oz (HFC Free BOV Can with 1234yf Adapter, Retail Box) | | Item Weight | 1 Ounces | | Item dimensions L x W x H | 9.4 x 8.6 x 14.7 centimetres | | Item form | Spray | | Item weight | 1 Ounces | | Manufacturer | TSI Supercool | | Manufacturer Part Number | 39241B-YF | | Model Number | 39241B-YF | | Number of Items | 1 | | Style | 1234yf Adapter | | Style Name | 1234yf Adapter | | UPC | 672264043262 | ## Product Details - **Brand:** TSI Supercool - **Compatible material:** Plastic - **Item form:** Spray - **Item weight:** 1 Ounces - **Number of items:** 1 ## Images ![TSI Supercool 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) ![TSI Supercool 39241B-YF Total Leak Stop and U/V Dye, 1 oz (HFC Free BOV Can with 1234yf Adapter, Retail Box) - Image 2](https://m.media-amazon.com/images/I/811AZUZRRjL.jpg) ![TSI Supercool 39241B-YF Total Leak Stop and U/V Dye, 1 oz (HFC Free BOV Can with 1234yf Adapter, Retail Box) - Image 3](https://m.media-amazon.com/images/I/71kPoHe-EmL.jpg) ![TSI Supercool 39241B-YF Total Leak Stop and U/V Dye, 1 oz (HFC Free BOV Can with 1234yf Adapter, Retail Box) - Image 4](https://m.media-amazon.com/images/I/71-F1dIgXhL.jpg) ## 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 ### ⭐⭐⭐⭐⭐ works as advertised *by K***R on 18 July 2026* Dye is highly visible and I was able to rapidly pinpoint the leak in my AC system. Worked like a champ. I am highly pleased. Please remember that you should not cross contaminate different coolant types. This one is for R-1234yf ### ⭐ product cheap junk *by E***H on 30 July 2026* does not seal up at connection point on low side of ac hose dye was everywhere on top of engine not worth the money.have to wash down engine bay and start over ,had to pull vacuum and start over. product junk ### ⭐⭐⭐⭐⭐ Actually worked *by S***X on 3 July 2026* I was pretty skeptical but after $3000 in repairs and trips to fours different mechanics (two dealers and two independents) this little can fixed my air leak. My 1234xy would last 2-3 weeks before. Now it is going on 9 weeks and is still going. Worth it and bought another. ## 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.co.za/products/311554904-tsi-supercool-39241b-yf-total-leak-stop-and-u-v](https://www.desertcart.co.za/products/311554904-tsi-supercool-39241b-yf-total-leak-stop-and-u-v) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-08-11*