Leak Saver Direct Inject AC Leak Sealer 3-Pack | AC Stop Leak for Most HVAC Systems Up to 5 Tons | Works with All Systems & AC Refrigerants | Made in the USA

Great product. Did the job

Did the job perfectly, and was simple to use. Very cost effective for sealing leaks, and saved me about $1200.00 in parts and labor it would have cost me to have a HVAC company to make the repairs, although to use it, you do need some basic knowledge and skills, along with some necessary tools, equipment, and supplies. As far as durability, only time will tell the story on that, but it has been several days now, and my system is still functioning as it should and there have been no issues to this point. Extremely pleased with results so far. Very highly recommended product.

Ok please read my back story. I'm a handy guy, I can fix almost anything. There are only two mechanical things I am not experienced in. 1) Automotive transmissions and...2) Home HVAC. I know the basic principle of home HVAC but never had the tools to work on it or guidance to teach me. Anyway, I have a house on the water, ocean access water in the Ft Lauderdale area. The AC on my home is a 20 year old 4 ton Rheem unit, R22 and exposed to salty humid air. It cools fantastic but over the years there have been a few leaks on the U tubes on the condenser coil (the outside unit, high side) and I had a long time AC guy that has welded the leaks and got me going. This last time a couple weeks ago the AC guy basically told me "my AC is shot I need an entire new system and he can't and won't attempt another repair, the cost of a new system is $8,000". Well I don't have $8,000 so he basically told me "good luck" and left. That's when I started researching these leak stop shots. My long time AC guy said my R22 system was empty and I believed him because the AC was cooling one day, then the next day freezing up then the next day barely blowing cold, the next day the low pressure switch was shutting the compressor down. Ok so I did my research. I bought two of these Leak Saver injections and a 15 pound can of R22....which was incredibly expensive, but cheaper than a new system. So i hooked the can of R22 to the leak savers and shot them in followed by a nice charge of R22. It's been about 2 weeks and the AC has never worked better! Also my AC guy said my system was empty, it's a 4 ton and holds about 11 pounds of R22 and it took 7 pounds to fill so I have plenty of extra 22 and an extra leak saver for the future just in case. People, this Leak Saver WORKS! My 4 ton R22 split system was leaking out at a rate that would have left it empty in a week, it's been 2 weeks and it's blowing cold! Plus I am putting the gauges on every few days to monitor pressure, it is stable! I am amazed this Leak Saver worked. Blown away actually. I gave this stuff about a 5% chance of working on a 4 ton high side leak. Give this a shot before spending thousands. Your biggest expense will be buying R22 but it is available online.

It definitely slows a leak down a loy. I've used it 4 times so far and it definitely slowed the leak. I am finally going to get a new AC. It did make my ac not lose all the freon as fast as it was.

Do not buy; Leak Saver does not work. I normally use Easy Seal, but this time I decided to try Leak Saver because of the cheaper price. The product went in very easily without any problem. I ran the product for over 24 hours. On the second day, I noticed the temperature was hotter in my home. I checked my thermostat; it was reading 82 degrees. I went to my unit and visually checked around it. Then I spotted it: the infamous frozen line. After a few curse words, I got back on Amazon and ordered what I know works; I ordered two packs of Easy Seal, I kept one pack as a backup. I serviced my unit. On day 5, my unit is still holding with the Easy Seal in it. I shall never purchase anything else but Easy Seal for my old AC units.

Final update: The replacement unit worked as advertised and all is good. Ordered another unit for future use. After posting the original submission, the company contacted me and offered to provide a replacement free of charge. They below there may have been a faulty Schroeder valve (the valve that opens when one end is screwed on tight to the fitting). I haven’t been able to try the replacement yet. However, any company that believes in their product enough to offer a free replacement warrants at least a 3, or neutral. Will update the review after using the replacement Original submission: Tried using this per the included instructions. First tried putting it between the 410 tank and low side. No 410 would flow and the fluid in tube was static. Took the “leak savor” out of the system and filled it with 410 up to the prescribed amount by the manufacturer. Then turned off the compressor and inserted this thing between the gauge and low side. Turned on compressor and carefully opened hi side to try and force the fluid from the tube (per the instructions!). No effect! Then, thinking maybe this “leak saver” may be directional in operation... I turned off the valves both sides and the compressor. Then reinserted this thing into the hi side hose but now in the reverse direction. Turned the compressor back on and opened the high side valve again...no change. While picking up the leak saver one of the ends loosened slightly and then the tube became empty real fast! Don’t think anything went into the HVAC systems but I did lose about 25 psi on the high side. The pressure difference in the system was around 250 psi when trying to empty the tube; 360 when the connector loosened slightly. Based on the directions, the pressure needed to force the fluid from the tube should be around 100 psi or so. However, by accident I found that it would empty when it exceeded 300 psi! Now I have to find an alternate solution and reconnect the 410 to add a bit more to the HVAC system.

To anyone out there who is thinking of purchasing this product because they have a leak in their central air unit, BUY IT!! I have a Lennox 2.5-ton unit in my house that is 38 YEARS old at this point. I had a leak that would require a recharge of R-22 every 2 weeks or so,I added this to my system in April and my unit has been running at 54° ever since. If you have an old unit and can't afford the cost of replacing your unit,definitely try this!

Put this in 2 years ago in my r22 system haven’t had a problem. Had a very small leak and it fixed it right up

The product made the promise! Highly ecommended.

Seems to work well in a mini split unit.

I bought this and put all 3 in 4 tons ac , not any work at all Wasting time and money DO NOT BUY

I used this product on 5 different systems with micro leaks . Unfortunately it did not seal the leaks as I was expecting. Was very easy to get product into sealed system.

C'est un produit exceptionnel. Prenez le temps pour qu'il seale toutes les fuites de votre système. C'est fantastique.