Leak Saver 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

I've got a slow leak somewhere on my 16 year old r410a 3ton Lennox Hvac - losing about 2lb of refrigerant over 8 months or so.Decided to try this leak saver as a last ditch hail Mary before biting the bullet and replacing the system. Used the charge in with refrigerant method - tube was clear and it was in in a couple of seconds, very simple. Left the tube attached while I topped up the rest of the refrigerant to the correct level. System is currently running great again, heating and cooling as it should. It's only been 3 weeks and given the leak is very slow before it becomes noticeable, it might be a while before I can tell if this has worked or not. I have shined my UV light round the usual suspect leak spots....have not seen any dye. Will check back in in a few months to see how it's doing, fingers crossed at this point!

i have a feon system from 2000...the hvac guys wouldnt fix it and only wanted to sell me a new ac unit for my house- 12k yeah ok surei got this stuff, 2lbs of feon, and boom - fixed itthis summer 90-100 f and higher... my house chillin at 70f all summergreat product this is and easy to install in system

I think it worked on my $2000+ dollar refrigerator. After a week the freezer still holds temp at 8 degrees and fridge at 40 degrees F. It was a 134a refrigerant system. It seemed to be a very straightforward install system but there is a catch. I setup as recommended using the refrigerant to force the stop leak into the system. No matter what I did I couldn't get it to inject into the fridge. After trying at least ten times to get tech support on the phone I decided to investigate the issue myself. The tube has a Schrader valve on both ends??? (Schrader valve is like the valve on your car tires to let air in or out) I guess it is to hold the stuff in the tube. After looking further, I found there is a spring loaded movement in the fridge end of the application tube that is supposed to actuate a bypass for the Schrader valve. It didn't work on my piercing valve. So I removed the Schrader and carefully keeping the open end up so it wouldn't pour out, attached it to the piercing valve and "Voila" it worked instantly. I did have to recharge it after 2 days, but I felt that the initial charge I put in was weak in the first place. Seems to be working well now.Note: I did hear back in an email from tech support with good information that confirmed my assumptions about the Schrader valve. But my time is important to me, and if the directions just had a simple set of directions about what to do if it won't go into the piercing valve it would have saved me 4 hours of frustration and loss of time, for a task that should have taken no more than 15 minutes. Their website says nothing about this in the tech support page either and I believe it is likely a common issue.OVERALL: Good product; good price; poor instructions, poor website for tech support info.

Sealed small leak like it says. Easy to work with.

I bought the injector and the leak shot injector together. I tried with the first cartridge - screw it onto the cap tightly, screw base on. I pulled the trigger at this point a little to make sure something would come out. It seemed to shoot out of the TOP of the injector. I thought that was maybe because the sealant tube was not hooked up yet. I then connected the sealant tube. Then attached the other end of the sealant tube to the low side service port. I pulled the trigger and nothing happened. I looked at the instruction papers and it said maybe it was not tight enough. I tightened as much as I could and still nothing. I disconnected from the service port and removed the sealant tube. When I removed the sealant tube, all the CO2 sprayed out of the top. I did NOT remove the CO2.I figured I would try the 2nd CO2 tube. This time, as soon as I screwed the cartridge onto the cap, all the CO2 came out around where the CO2 tube screws into the injector. I did this with the trigger lock on, so I would not accidently pull the trigger while tightening.So now I have no CO2, and I think I have a defective injector. And while doing all this and screwing/unscrewing the sealant tube, quite a bit came out on my hands, so there is less than a full shot of sealant left.

Hopefully work. Easy to use.

I had a certified hvac tech install mine. He said it plugged my coils and killed my unit.Bought as a last ditch before replacing the coils since I was losing 1-2 lbs every few months on my dated r22 unit.I feel like it would have worked better if I added it sooner. As a before it leaks.Seller refunded the purchase price.If you live in the south and your unit is on its last don't do it.Off To buy a new unit

Seems to have plugged a leak in a 30 year old R22 system and with top up got me through this summer.

Easy to use , straight forward application

Not readily able to use on R-134A systems.The connectors do NOT fit 134A !!