--- product_id: 50471586 title: "39241B-YF HFO-1234yf Total Leak Stop Plus U/V Dye. (NOT for USE in R134a Systems)" price: "VT11807" currency: VUV in_stock: true url: https://www.desertcart.vu/products/50471586-39241b-yf-hfo-1234yf-total-leak-stop-plus-u-v store_origin: VU region: Vanuatu --- # Includes UV dye for leak detection Stops leaks in metal & rubber A/C parts Patented HFC-Free BOV delivery system 39241B-YF HFO-1234yf Total Leak Stop Plus U/V Dye. (NOT for USE in R134a Systems) **Price:** VT11807 **Availability:** ✅ In Stock ## Summary > ❄️ Seal the cool, skip the sweat — your A/C’s secret weapon! ## Quick Answers - **What is this?** 39241B-YF HFO-1234yf Total Leak Stop Plus U/V Dye. (NOT for USE in R134a Systems) - **How much does it cost?** VT11807 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/50471586-39241b-yf-hfo-1234yf-total-leak-stop-plus-u-v) ## 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 - • **One Can, One Vehicle:** Each overfilled can treats a full vehicle, guaranteeing optimal fluid injection and residual protection. - • **UV Dye Leak Detection:** Integrated UV dye makes pinpointing leaks effortless, saving time and costly repairs. - • **Precision Leak Sealing:** Effectively seals small leaks in evaporators, condensers, hoses, gaskets & O-rings for lasting A/C performance. - • **Hybrid & Electric Ready:** Formulated to be fully compatible with hybrid and electric vehicle compressors for future-proof maintenance. - • **HFC-Free Safe Application:** Patented BOV delivery system ensures quick, safe, and eco-friendly application without harming system components. ## Overview TSI Supercool 39241B-YF is a specialized total leak stop and UV dye solution designed exclusively for HFO-1234yf refrigerant A/C systems. It effectively seals small leaks in metal and rubber components while lubricating the system to extend compressor life. Featuring a patented HFC-free BOV delivery system and a quick-connect hose adapter, it ensures safe, precise application without damaging hybrid or electric vehicle compressors. One can treats one vehicle, making it a must-have for maintaining peak A/C performance and avoiding costly recharges. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01981J9DU | | Best Sellers Rank | #10,156 in Automotive ( See Top 100 in Automotive ) #92 in Air Conditioning Tools & Equipment | | Brand | TSI Supercool | | Brand Name | TSI Supercool | | Compatible Material | Metal, Rubber | | Customer Reviews | 3.9 out of 5 stars 323 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 | 3.7 x 3.4 x 5.8 inches | | 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 | 3.7 x 3.4 x 5.8 inches | | Manufacturer | TSI Supercool | | Model | 39241B-YF | | Number of Items | 1 | | Part Number | 39241B-YF | | Style | 1234yf Adapter | | Style Name | 1234yf Adapter | | UPC | 672264043262 | | Unit Count | 1.0 Count | | Warranty Description | manufacturer warranty | ## Product Details - **Brand:** TSI Supercool - **Compatible Material:** Metal, Rubber - **Item Form:** Spray - **Item Weight:** 1 Ounces - **Unit Count:** 1.0 Count ## Images ![39241B-YF HFO-1234yf Total Leak Stop Plus U/V Dye. (NOT for USE in R134a Systems) - Image 1](https://m.media-amazon.com/images/I/71hJykbeHhL.jpg) ![39241B-YF HFO-1234yf Total Leak Stop Plus U/V Dye. (NOT for USE in R134a Systems) - Image 2](https://m.media-amazon.com/images/I/811AZUZRRjL.jpg) ![39241B-YF HFO-1234yf Total Leak Stop Plus U/V Dye. (NOT for USE in R134a Systems) - Image 3](https://m.media-amazon.com/images/I/71kPoHe-EmL.jpg) ![39241B-YF HFO-1234yf Total Leak Stop Plus U/V Dye. (NOT for USE in R134a Systems) - Image 4](https://m.media-amazon.com/images/I/71-F1dIgXhL.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. ## 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.vu/products/50471586-39241b-yf-hfo-1234yf-total-leak-stop-plus-u-v](https://www.desertcart.vu/products/50471586-39241b-yf-hfo-1234yf-total-leak-stop-plus-u-v) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-06-04*