Leak Saver Direct Inject AC Leak Sealer Small System | AC Stop Leak for Most HVAC Systems Up to 1 Ton | Works with All Systems & AC Refrigerants | Made in The USA

Easy to use & is working well. My AC unit was installed back in 2001 so it was beginning to leak refrigerant and freeze up constantly. Fortunately my neighbor told me about this product and not only has it saved my family from the Texas heat but it also saved me money.

I must admit I was very skeptical about the possibility of this working. In the spring, my air conditioning completely lost all of the gas over winter. I pulled the vacuum re-serviced the unit and then added this stop leak. I ran it for about eight hours and as it was spring, the temperature cooled off and I was not able to run it again for a couple of weeks. Here we are now at least two months later and it is still holding charge and working as it should. Again, I am very happy and very surprised for it to work this well.

Used it on our split unit we have in renovated garage. Unit was only a couple years old and had a leak. HVAC repairman came out and put it in while charging the unit. Worked great so far and much cheaper than buying another split unit. I’ll buy it again if I have to.

I love this product! Instead of an expensive unit replacement for a refrigerant leak, Leak Stop saved the day. Even after a week of scorching 90-degree weather, my AC is still working perfectly. Applying it was a breeze, especially with the convenient CO2 applicator. Highly recommend for saving money and hassle-free maintenance!

I’ve had a small leak that’s been getting worse over the past couple of years. Started as having to top off every season, then last year it got to where I was starting to lose 1-2lbs every 2 months. This year I decided to buy my own refrigerant and put this leak stop stuff in back in the beginning of April knowing that AC season was upon us. All I’ve got to say is WOW! I haven’t lost any refrigerant since I added this stuff and it’s now the end of September. It got me through the whole summer! I was a tad worried about trying this stuff after seeing horror stories of it seizing people’s systems… but boy am I glad I took the risk! Now I’ll be interested to see if the system loses any of its charge when it’s not being used over the winter, which is what’s unfortunately happened over the past 3 winters. Hopefully this time there’ll be no freeze ups when I turn it on next spring… we shall see!

Super easy to use and well-packaged.

We have a really old 3 ton Goodman that has seen better days. HVAC guys wanted $5k to replace unit. The unit needed topping off and the capacitor keeps blowing every summer. Changing the capacitor and topping off with R22 was something I have no problem doing. But I can tell there was a slow leak. There was really nothing to lose trying this Leak Saver AC sealer as a last rescue attempt. I did pre-treat with Leak Saver's Moisture Remover to make sure there was little chance of the sealer clogging my system. It has been three years now and that old HVAC unit is still cooling strong with no need to top off. I'm very surprise! I usually don't believe in these "snake oil" remedy but this one is an EXCEPTION. For $70 (sealer and moisture remover), I really can't complain. If your system is on it's last leg, I would highly recommend this product.

Update :After posting my review the seller reach out and offered a full refund. They did not ask me to change my review, but I think it’s only fair that I give them credit since they were not obligated to refund any of my purchase price. The only thing they asked was that I give them another chance in the future, which I may do.Product didn’t work in my case, I followed the mfg. instructions but this did not fix the leak in my mini-split A/C system. Not sure if it’s just this specific product or all product like this one in general, but it was a total waste of time and money. Be aware, there are no refunds on consumable products, so you are going to have to accept the risk if you decide to use this product.