--- product_id: 203914349 title: "Direct Inject Ultimate 6-Pack | 3-in-1 AC Refrigerant Leak Sealer | with UV Dye & Moisture Remover | for Most HVAC Systems Up to 5 Tons - Professional AC Leak Sealer - AC Stop Leak" brand: "leak saver" price: "£235.18" currency: GBP in_stock: true reviews_count: 13 category: "Leak Saver" url: https://www.desertcart.co.uk/products/203914349-direct-inject-ultimate-6-pack-3-in-1-ac-refrigerant store_origin: GB region: United Kingdom --- # Easy direct inject installation, no mess Compatible with all HVAC & automotive refrigerants 3-in-1 Sealant + Moisture Remover + UV Dye Direct Inject Ultimate 6-Pack | 3-in-1 AC Refrigerant Leak Sealer | with UV Dye & Moisture Remover | for Most HVAC Systems Up to 5 Tons - Professional AC Leak Sealer - AC Stop Leak **Brand:** leak saver **Price:** £235.18 **Availability:** ✅ In Stock ## Summary > 🛡️ Stop leaks like a pro—because your AC deserves the ultimate defense! ## Quick Answers - **What is this?** Direct Inject Ultimate 6-Pack | 3-in-1 AC Refrigerant Leak Sealer | with UV Dye & Moisture Remover | for Most HVAC Systems Up to 5 Tons - Professional AC Leak Sealer - AC Stop Leak by leak saver - **How much does it cost?** £235.18 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/203914349-direct-inject-ultimate-6-pack-3-in-1-ac-refrigerant) ## Best For - leak saver enthusiasts ## Why This Product - Trusted leak saver brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-in-One HVAC Savior:** Seal leaks, remove moisture, and detect leaks with UV dye in one pro-grade formula. - • **Effortless Installation:** Direct inject with basic tools—no syringes, hoses, or pressurized cans needed. Save time and hassle. - • **Universal Compatibility:** Works seamlessly with all major refrigerants including R410A, R22, R134A, and automotive AC systems. - • **Permanent Leak Protection:** Reacts only at leak sites to permanently seal without clogging sensitive components. - • **Trusted by Pros & Millennials Alike:** Over 4 million units sold since 2015, proudly made in the USA with a satisfaction guarantee. ## Overview Leak Saver Direct Inject Ultimate 6-Pack is a professional-grade 3-in-1 AC refrigerant leak sealer that combines permanent leak sealing, moisture removal, and UV dye leak detection. Compatible with most HVAC systems up to 5 tons and all common refrigerants, it offers a straightforward, mess-free direct injection installation. 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The video guides you through product setup. The video compares multiple products. The video shows the product being unpacked. (window.desertcartUIPageJS ? desertcartUIPageJS : P).load.js('https://m.media-desertcart.com/images/I/61rq0L4t2wL.js?AUIClients/VSEPlayer'); (window.desertcartUIPageJS ? desertcartUIPageJS : P).load.js('https://m.media-desertcart.com/images/I/3175HHgX+OL._RC|01x4giTy+uL.js,01r9LpT6pbL.js,41NWBkfooBL.js,11QfrzttlqL.js,91VXiFQ1TCL.js,01ELLYeIOkL.js_.js?AUIClients/Brila'); (function(f) {var _np=(window.P._namespace("vse-ns-initVSEPlayerOnLoad"));if(_np.guardFatal){_np.guardFatal(f)(_np);}else{f(_np);}}(function(P) { P.when('VSEPlayer').execute(function(vsePlayer){vsePlayer.initPlayer('aplus-37276-player-ps');}); //Please use below event to register FeedbackForm P.when('A', 'VSEComponentAssets').execute('vse-ns-player-initialization', function(A, asset) { A.trigger('vse:ns:player:aplus-37276:init', 'aplus-37276-player-ps'); }); })); METHOD 1 Charge With Refrigerant Step 1 : Attach Leak Saver to Running System Step 2: Attach Yellow Hose to Tank Step 3: Attach Blue Hose to Leak Saver Step 4: Open Low Side Valve to Push Sealant into System. Let System Run for 1 Hour to Fully Circulate Sealant METHOD 2 Using High Side Pressure STEP 1: Attach Leak Saver to Running System STEP 2: Attach Red Hose to High Side STEP 3: Attach Yellow Hose to Leak Saver STEP 4: Open the High Side Valve to Push in the Leak Saver. Let System Run for 1 Hour to Fully Circulate Sealant METHOD 3 Using The LEAK SHOT: HVAC STEP 1: Connect the Leak Saver to the Leak Shot Injector STEP 2: Connect the Leak Saver to the low side service port and inject STEP 3 : Let the system run for at least 60 minutes to circulate the product NOTE: Inject only enough CO2 to empty the Leak Saver tube. One CO2 cartridge can last 5-8 injections METHOD 4 Using The LEAK SHOT: AUTO STEP 1: Connect the Leak Saver to the Low Side Car A/C Adapter & the Leak Shot Injector STEP 2: Connect the Low Side Car A/C Adapter to the low side A/C service port on your car and inject Leak Saver Direct Inject Product Line Direct Inject Leak Sealer Direct Inject Ultimate Leak Saver Injection Kit Direct Inject UV Sealer Acid Remover Moisture Remover UV Leak Detection Dye Review: It actually works - This stuff is the best! Easy to use and works great. Review: Works 100%. Worth trying no this product rather keep spending on Freon. - my HVAC unit has very tiny leak. I spent two to three times on technician to find what is wrong with HVAC but their Freon sniffers could not do the job as leak was so little that even professional tools didnt helped. After every few years, I spent $ on freon as no one would come to conclusion on why freon is low and where is the leak. Finally I googled and used this product. I followed the instructions. As leak was very small, I waited 11 days. Today I found the leak. The technician was right. He suspected the coil, but his tester could not prove it. And pressure gauge would not drop a psi on test for almost an hour. I was looking for a proof and this product made it clear that coil is to blame. I highly recommend this product as things can not be easier then this for to come to conclusion. ## Features - 3-IN-1 SEALANT + MOISTURE REMOVER + UV DYE – Our proven leak sealant now includes moisture remover and UV dye for the complete system treatment! Now, you can seal your leak, remove system moisture, or find large leaks with the UV Dye...all in one easy to install package! - STOP LEAKS PERMANENTLY - The Leak Saver can permanently seal refrigerant leaks where the complete refrigerant charge is not lost within 7 days. When a leak occurs, the Leak Saver reacts with the air and moisture at the leak site to permanently seal the leak. When used for preventative maintenance, the active ingredient circulates safely in the system to seal future leaks - WORKS WITH ALL SYSTEMS & REFRIGERANTS INCLUDING CARS - Our product is compatible with all systems, refrigerants (except ammonia), car refrigerants, and oils. It is great for central air conditioners, automotive air conditioners, refrigerators, ductless mini-splits, heat pumps, geothermal heat pumps, commercial refrigeration systems, micro channel coils and more. It also works with all refrigerants including R410A Freon, R22 and replacements, R134A , r1234yf, R404A, R290, R600a, and more - STRAIGHTFORWARD INSTALLATION - No more fussing with messy syringes, hoses, or pressurized cans. The Leak Saver HVAC sealant injects directly and easily into the system with a basic manifold gauge set or even easier with our Leak Shot Injection Kits. NOTE: for automotive systems, you will still need the standard 134A to 1/4” charging adapter. Mini-splits may require a 5/16” to 1/4” charging adapter. You can see our straightforward installation videos below - SAFE FOR ALL TOOLS AND PARTS - Our HVAC leak sealer is safe for all manifold gauges, hoses, expansion valves (TXVs, TEVs, capillary tubes, etc), Schrader valves, and anything needed to service your system. Adapter required for mini splits (5/16" to 1/4") and automotive systems ( 134A to 1/4") - THE MOST TRUSTED - The numbers don’t lie! With more than 4,000,000 units sold of our air conditioner leak sealer formula since 2015, we are the most trusted leak sealant among HVAC professionals. Proudly made in the USA. We stand 100% behind the quality of our products. If for any reason you are not satisfied with your order, reach out to us and we will make it right. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B086M3WGPT | | Best Sellers Rank | #6,681 in Automotive ( See Top 100 in Automotive ) #14 in Air Conditioning Line Repair Tools | | Brand | Leak Saver | | Brand Name | Leak Saver | | Customer Reviews | 4.3 out of 5 stars 942 Reviews | | Item Dimensions | 9.5 x 6.5 x 3 inches | | Item Form | Liquid | | Item dimensions L x W x H | 9.5 x 6.5 x 3 inches | | Manufacturer | Leak Saver | | Number of Items | 6 | | Part Number | LS-05ULT-6P | | Style | Compact | | Style Name | Compact | | UPC | 604296228034 | | Unit Count | 6 Count | ## Images ![Direct Inject Ultimate 6-Pack | 3-in-1 AC Refrigerant Leak Sealer | with UV Dye & Moisture Remover | for Most HVAC Systems Up to 5 Tons - Professional AC Leak Sealer - AC Stop Leak - Image 1](https://m.media-amazon.com/images/I/61UkoZvoWcL.jpg) ![Direct Inject Ultimate 6-Pack | 3-in-1 AC Refrigerant Leak Sealer | with UV Dye & Moisture Remover | for Most HVAC Systems Up to 5 Tons - Professional AC Leak Sealer - AC Stop Leak - Image 2](https://m.media-amazon.com/images/I/71w8UUKIWpL.jpg) ![Direct Inject Ultimate 6-Pack | 3-in-1 AC Refrigerant Leak Sealer | with UV Dye & Moisture Remover | for Most HVAC Systems Up to 5 Tons - Professional AC Leak Sealer - AC Stop Leak - Image 3](https://m.media-amazon.com/images/I/815RYydwVSL.jpg) ![Direct Inject Ultimate 6-Pack | 3-in-1 AC Refrigerant Leak Sealer | with UV Dye & Moisture Remover | for Most HVAC Systems Up to 5 Tons - Professional AC Leak Sealer - AC Stop Leak - Image 4](https://m.media-amazon.com/images/I/712NmJAj7kL.jpg) ![Direct Inject Ultimate 6-Pack | 3-in-1 AC Refrigerant Leak Sealer | with UV Dye & Moisture Remover | for Most HVAC Systems Up to 5 Tons - Professional AC Leak Sealer - AC Stop Leak - Image 5](https://m.media-amazon.com/images/I/71Uc3asV2dL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ It actually works *by B***N on May 23, 2026* This stuff is the best! Easy to use and works great. ### ⭐⭐⭐⭐⭐ Works 100%. Worth trying no this product rather keep spending on Freon. *by C***K on April 23, 2026* my HVAC unit has very tiny leak. I spent two to three times on technician to find what is wrong with HVAC but their Freon sniffers could not do the job as leak was so little that even professional tools didnt helped. After every few years, I spent $ on freon as no one would come to conclusion on why freon is low and where is the leak. Finally I googled and used this product. I followed the instructions. As leak was very small, I waited 11 days. Today I found the leak. The technician was right. He suspected the coil, but his tester could not prove it. And pressure gauge would not drop a psi on test for almost an hour. I was looking for a proof and this product made it clear that coil is to blame. I highly recommend this product as things can not be easier then this for to come to conclusion. ### ⭐⭐⭐⭐ Effectiveness *by G***E on August 1, 2022* I had "professionals" come look at my central 410A A/C unit. It has a slow leak, frosting every 3-4 months so figured they could find and fix the leak. They charged over $400 to come out and tell me there was a leak. They provided pictures of the inside low side piping as where the leak is and said it would be over $1700 to fix it. That's when I decided to become an A/C repairman. Figured for that price I could buy all the tools and equipment I need to fix it myself. To make a long story short, I found the leak outside on the low side piping (no leaks on the inside). I can replace the copper or try this product that says it stops the leak, takes water out of the refrigeraterant, and injects an infrared die so I can check if it continues leaking. For the price it is a no brainer. The sealer has been in for several weeks but since it was a slow leak, I won't know if it worked, or not for several months. I expect next seasons start-up will determine if it works. Meanwhile they offer a free infrared light (hence this review). Once I get it I'll do another once over on the unit to identify any other leaks I may have missed. ## Frequently Bought Together - Leak Saver: Direct Inject Ultimate - 3-in-1 Leak Sealant with Moisture Remover and UV Dye for Air Conditioner, Heat Pumps and More - Works on most HVAC and Automotive Systems - Proudly Made in the USA - Leak Saver - Leak Shot HVAC - Leak Sealant Injector and Condensate Line Blaster - Non-Contaminating CO2 Cartridges - for A/C and Mini Splits - Systems Up to 5 Tons - Leak Saver Direct Inject Refrigerant Leak Sealer, 6 Pack - 2022 Updated Sealant Formula for Most HVAC Systems Up to 5 Tons - Made in the USA --- ## 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.uk/products/203914349-direct-inject-ultimate-6-pack-3-in-1-ac-refrigerant](https://www.desertcart.co.uk/products/203914349-direct-inject-ultimate-6-pack-3-in-1-ac-refrigerant) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-09*