--- product_id: 1571172 title: "Red Angel Automotive A/C Refrigerant Stop Leak with Attached Cupler| Permanent Non-Clogging Leak Repair | 4.5 oz." brand: "bluedevil products" price: "€ 86.71" currency: EUR in_stock: true reviews_count: 9 category: "Blue Devil Products" url: https://www.desertcart.hr/products/1571172-red-angel-automotive-a-c-refrigerant-stop-leak-with-attached store_origin: HR region: Croatia --- # DIY easy one-shot application Permanent A/C leak seal Built-in UV dye for leak detection Red Angel Automotive A/C Refrigerant Stop Leak with Attached Cupler| Permanent Non-Clogging Leak Repair | 4.5 oz. **Brand:** bluedevil products **Price:** € 86.71 **Availability:** ✅ In Stock ## Summary > ❄️ Stop leaks, start chilling — keep your cool with Red Angel! ## Quick Answers - **What is this?** Red Angel Automotive A/C Refrigerant Stop Leak with Attached Cupler| Permanent Non-Clogging Leak Repair | 4.5 oz. by bluedevil products - **How much does it cost?** € 86.71 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/1571172-red-angel-automotive-a-c-refrigerant-stop-leak-with-attached) ## Best For - bluedevil products enthusiasts ## Why This Product - Trusted bluedevil products brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **DIY Friendly:** One-shot system with an attached coupler for quick, mess-free installation—no mechanic needed. - • **Seal It & Chill:** Guaranteed permanent seal that keeps your A/C icy cold season after season. - • **Detect & Protect:** Integrated UV dye makes future leak detection effortless and precise. - • **R-134a Optimized:** Specifically designed for R-134a systems to restore refrigerant performance fast. - • **No Clogs, No Worries:** Formulated with no solids or particles to protect your system from damage or blockages. ## Overview Red Angel A/C Refrigerant Stop Leak is a professional-grade, permanent leak sealant designed for R-134a automotive A/C systems. Featuring a clog-free formula and an easy one-shot application with an attached coupler, it safely seals leaks in condensers, evaporators, hoses, gaskets, and O-rings. The built-in UV dye simplifies future leak detection, making maintenance hassle-free. Backed by a money-back guarantee, it offers a reliable, long-lasting solution to costly A/C repairs. ## Description Red Angel A/C Refrigerant Stop Leak provides a permanent solution for automotive A/C leaks and is designed for quick and efficient application with its "One Shot" system. Safe for use in critical components such as condensers, evaporators, hoses, gaskets, and O-rings, it contains no solids or particles, ensuring it won’t clog or harm your car A/C system. Specifically designed for R-134a systems, it includes a refrigerant charge to restore optimal A/C refrigerant performance quickly. The attached coupler allows for easy, DIY installation, and the built-in UV dye simplifies future A/C leak detection. Red Angel A/C Refrigerant Stop Leak offers a reliable, long-lasting repair solution, backed by a money-back guarantee. Review: Worked when other product didn’t - My 2012 vehicle developed a leak in the A/c evaporator, which would cost over $2500 to fix, since it requires removal of the dashboard. Previously, I tried a stop leak product available at the local discount store, but the Freon leaked out overnight. I decided to trade in the car because I can’t live another summer without a/c, but figured I’d give red angel a try before throwing in the towel. To my shock, the Freon did not leak out the next day and still blew amazingly cold air. I’m going on almost 2 weeks now and all is well. Also, many reviews criticized the dispenser and application, however, for me, it worked fine and I was able to see all of the the red product flow into my low pressure port. I highly recommend giving this product a shot when others fail before throwing in the towel on an expensive repair or trade in. Just carefully read and follow the instructions, cross your fingers, and see if it works like it did for me. I don’t know how long this will last but it was certainly worth the cost. Update 3/29/2026 - well after all these months my Freon finally leaked out. I consider this an excellent result, since it gave me so many months of a/c use. I recharged the car with a can of cheap Freon from a big box store and all is blowing cold again. . Depending on how long this holds, I may just buy another can of red angel to see if it gives me another long run of a/c use . Review: Do not purchase this cheap junk ! - I purchased this stop leak & put it on my shelf as I was waiting for 134r Freon to arrive. I went to use it & the quick connect hose broke off as I was putting the quick connection on the air conditioning system, the red stop leak went everywhere & made a huge mess, now the hose won't stay on the can no matter what ! It's plastic & it's junk, it is now unusable & the return time expired & I lost out on the money I spent which sucks. Do not buy this product, oh yeah it took forever to arrive as well. I live in the desert & I really needed to have my air working. Don't buy this product, it turned into a huge pain in the a--. I didn't want to give it a single star but I had to, to post it. Signed, a very unhappy & hot customer !!! ## Features - Guaranteed Permanent Seal - Will Not Clog or Damage the A/C System or Recovery Unit - GUARANTEED PERMANENT SEAL - Now with UV Dye for leak detection ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B002BG4WX2 | | Best Sellers Rank | #7,625 in Automotive ( See Top 100 in Automotive ) #3 in Air Conditioning Leak Detection Tools | | Brand Name | BlueDevil Products | | Customer Reviews | 3.7 3.7 out of 5 stars (1,949) | | Global Trade Identification Number | 00891838002225 | | Included Components | 4.5 Ounce aerosol can | | Inlet Connection Type | Compression | | Item Dimensions | 2.25 x 2.25 x 5.5 inches | | Item Type Name | A/C Stop Leak | | Item Weight | 4.48 ounces | | Manufacturer | BlueDevil Products | | Manufacturer Warranty Description | limited | | Material Type | Plastic | | Model Number | 00222 | | Number of Ports | 1 | | Size | 4.5 Ounce (Pack of 1) | | Specification Met | SAE J739, ISO 8422, ISO 817, SAE J2843 | | UPC | 891838002225 | | Unit Count | 4.5 Ounce | | Valve Type | Check Valve | ## Product Details - **Brand:** BlueDevil Products - **Global Trade Identification Number:** 00891838002225 - **Inlet Connection Type:** Compression - **Item dimensions L x W x H:** 2.25 x 2.25 x 5.5 inches - **Manufacturer:** BlueDevil Products - **Material:** Plastic - **Number of Ports:** 1 - **Specification Met:** SAE J739, ISO 8422, ISO 817, SAE J2843 - **UPC:** 891838002225 ## Images ![Red Angel Automotive A/C Refrigerant Stop Leak with Attached Cupler| Permanent Non-Clogging Leak Repair | 4.5 oz. - Image 1](https://m.media-amazon.com/images/I/71g+39ms3tL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: The evaporator in my 2005 Prius is leaking. The price to fix it is $1614 because the whole dash has to come out. Will this stuff work on evaporators?** A: I can only tell you it worked a year for me in my 2008 Toyota Tundra. My friend tried it in his wife's jeep. And he said it did not work for him. But after a year I have put another can in my 2008 Tundra, and it is working again for me. Hoping it gives me atleast another year. Because I am in the same situation. They would have to take my dash out as well. I don't want to pay that price either. **Q: Is there a way to purge the air from the hose before putting it in?** A: Yes but it may not help you. You could attach the coupler and then pull a vacuum on the whole system thru hi port but if you have leaks and you wouldnt be using this if you didnt you will gain nothing. You could place the coupler on the port and eject the air by flowing some of the pink sealing foam into the hose and then snap the coupler into place. could get messy. Dont worry about it and just use the product as directed. It works! **Q: Do you use the whole can ?** A: I would say use the whole can. I have fixed A/C leaks on a 1997 Saturn and a 2004 Toyota Highlander 4 cyl. and used the whole can on both and my vehicles and it fixed the leak. **Q: Can you add this after you have recharged the r34?** A: As long as there is sufficient capacity in your system. Don’t overcharge. This stopped a fairly large leak for my son. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worked when other product didn’t *by A***J on October 7, 2025* My 2012 vehicle developed a leak in the A/c evaporator, which would cost over $2500 to fix, since it requires removal of the dashboard. Previously, I tried a stop leak product available at the local discount store, but the Freon leaked out overnight. I decided to trade in the car because I can’t live another summer without a/c, but figured I’d give red angel a try before throwing in the towel. To my shock, the Freon did not leak out the next day and still blew amazingly cold air. I’m going on almost 2 weeks now and all is well. Also, many reviews criticized the dispenser and application, however, for me, it worked fine and I was able to see all of the the red product flow into my low pressure port. I highly recommend giving this product a shot when others fail before throwing in the towel on an expensive repair or trade in. Just carefully read and follow the instructions, cross your fingers, and see if it works like it did for me. I don’t know how long this will last but it was certainly worth the cost. Update 3/29/2026 - well after all these months my Freon finally leaked out. I consider this an excellent result, since it gave me so many months of a/c use. I recharged the car with a can of cheap Freon from a big box store and all is blowing cold again. . Depending on how long this holds, I may just buy another can of red angel to see if it gives me another long run of a/c use . ### ⭐ Do not purchase this cheap junk ! *by D***. on July 18, 2025* I purchased this stop leak & put it on my shelf as I was waiting for 134r Freon to arrive. I went to use it & the quick connect hose broke off as I was putting the quick connection on the air conditioning system, the red stop leak went everywhere & made a huge mess, now the hose won't stay on the can no matter what ! It's plastic & it's junk, it is now unusable & the return time expired & I lost out on the money I spent which sucks. Do not buy this product, oh yeah it took forever to arrive as well. I live in the desert & I really needed to have my air working. Don't buy this product, it turned into a huge pain in the a--. I didn't want to give it a single star but I had to, to post it. Signed, a very unhappy & hot customer !!! ### ⭐⭐⭐⭐⭐ It works!!!....... UPDATE!!!!!!!!!! *by C***R on July 4, 2014* Well, I put the Red Angel into my 2002 Oldsmobile Aurora 4.0 v8 that had leak that fully drained in 24 hours, I tried every stop leak on the market but it would always leak out by the next day,So I saw this advertised on an auto parts website but it was almost $50 so I tried looking for it on here at Amazon, I got the stuff on July 1, 2014 I read the directions on the can and it was basically start your car, turn the A/C on high and shoot the stuff in and fill it up with 134A coolant..it took all of 10 minutes..the only drawback was the can, the top was off the can when it arrived and I just put it back on and very little escaped from the top, now here it is July 4, 2014 and it is still blowing ice cold air, now it is too soon to tell, but I went over the 24 hour mark, here it is 96 hours later and it still works 100%.... I will keep you updated as the summer goes on, but I have a good feeling with the Red Angel UPDATE!!!!!!!! Sep 27th 2014 Well it is blowing warm air again. Here in PA it was kind of cold for the last 2 weeks so I did not use the AC but the other day it was hot, so I turned on the AC but no go, it was back to blowing warm air again, but honestly I am not disappointed at all because Last year I would fill it up with the R134A and by the next morning it was gone, so I used the red angel on July 1st and Sep 25th it was warm again(ok it was hot air lol) but I figure this....I spend $20/day to have AC(Nope) or I spend $30 for the Red Angel plus say $20 for 3 cans of R134A and it will get me through next summer? yes the Red Angel did not stop the leak, but it slowed it down so I could at least drive the summer with AC So to recap : The Red Angel sort of worked It got me through a summer using AC I spent $30 for the Red Angel and $24 for r134a (3 cans)(2 cans with the red angel 1 can to top it off on 8/17) so $54 to get me through the summer or a lot more than that NOT using Red Angel now it was Ice cold from 7/1/14 until 8/17/14 when it was blowing cold but not as cold as it was, I used 3/4th of 1 can of r134a and it was back to blowing Ice cold and lasted until 9/25/14...all in all I am pleased with the product.. I got over 2 1/2 months with the Red Angel VS 1 day with the other stop leak products on the market. Next Summer I am going to buy the Red Angel and 3 cans of R134a so I can hopefully get through another summer.... I hope this review helps someone decide whether or not to try this product because even though it stopped working it was cheaper to try this rather than fix my system for $800 on a 13 year old car with 160k miles on it... I will most definitely buy this product again ## Frequently Bought Together - Red Angel 00222 A/C Stop Leak & Conditioner - 4.5 Ounce - X AUTOHAUX Oil and Dye Injectors Kit 30ml/1 Oz Hand Push Compressor Manual AC Oil Dye Injector with Quick Coupler 1/4 SAE Connector Car HVAC Compressor Oil Dye Injector Refrigerant Tool --- ## 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.hr/products/1571172-red-angel-automotive-a-c-refrigerant-stop-leak-with-attached](https://www.desertcart.hr/products/1571172-red-angel-automotive-a-c-refrigerant-stop-leak-with-attached) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-04-24*