--- 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: "¥17594" currency: JPY in_stock: true reviews_count: 5 category: "Tsi Supercool" url: https://www.desertcart.jp/products/311554904-tsi-supercool-39241b-yf-total-leak-stop-and-u-v store_origin: JP region: Japan --- # 1-can, 1-vehicle easy fix Stops small AC leaks fast Polymer-free, no clogging 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:** ¥17594 **Availability:** ✅ In Stock ## Summary > ❄️ Seal the deal, cool with confidence! ## 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?** ¥17594 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/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 - • **Zero Clog, Zero Hassle:** Polymer-free formula ensures your AC system and recovery machines stay pristine and fully operational. - • **Plug & Play Leak Repair:** One can treats one vehicle—simple, effective, and no mechanic required. - • **Freeze Out Leaks Like a Pro:** Engineered to seal evaporators, condensers, hoses, gaskets, and seals with pinpoint precision. - • **Eco-Friendly Coolant Solution:** HFC-free patented aerosol technology keeps your ride green and compliant with modern standards. - • **UV Dye for Instant Leak Detection:** Highly visible dye lets you spot leaks in seconds, saving time and costly repairs. ## Overview TSI Supercool 39241B-YF Total Leak Stop and U/V Dye is a 1-ounce, HFC-free aerosol spray designed to quickly and safely stop small leaks in vehicle AC systems. Featuring a polymer-free formula, it prevents clogging of system components and recovery machines. The product includes a 1234yf adapter for easy application and a UV dye for rapid leak detection, making it a must-have for efficient, eco-conscious vehicle maintenance. ## 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: Actually worked - 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. ## 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 | 3.8 out of 5 stars 271 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 ### ⭐⭐⭐⭐⭐ 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. ### ⭐ Warning!! extreme risk! crappy connector on this product. heed the pictures! *by M***L on 10 June 2026* bought for 2018 Cadillac Escalade. Yes it uses 1234yf I have no problems charging it with regular 1234yf refrigerant. I saw all the reviews of others having issues with the badly cheap connector. I was just thinking they bought for the wrong refrigerant type and surely I wouldn't have NO issues. I was wrong. When I attempted to squeeze air out of tube. I thought it was broken nothing coming out. Well Like Other reviews You have to press extremely hard thought I was going to break it. Next I attempted to connect to low port. Mine is way at the bottom of vehicle so have to stand on chair hard to get at especially with this very short tube. The thing would not click on to the port. it would go on but just sit very loosely after about 10 minutes thinking this should click on there no problems like all the other refrigerants i have use. I thought will maybe it's just supposed to fit on this way. So very hesitant I thought lets try it. turn the vehicle made sure compressor is turning and begin to press the button Very hard cause only way it will come out and wouldn't you know the fluid leaked all out the sides of port so after being very disappointed. I tried some more to get that thing on the port NO Go and cause this fluid was leaking out sides of port I made even more of mess So now I wouldn't be able to tell if I got a leak somewhere. I'm out 30 dollars now cause apparently there is no return on this item!! I feel like I've been scammed! The only good thing about this stuff it glows very nicely under the UV light and makes a big mess cause of crappy cheap plastic connector. ## 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.jp/products/311554904-tsi-supercool-39241b-yf-total-leak-stop-and-u-v](https://www.desertcart.jp/products/311554904-tsi-supercool-39241b-yf-total-leak-stop-and-u-v) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-04*