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

Key is to install properly.Sometimes you can just add this sealer and it has a chance to work.Or you can pump down system, add a new liquid line dryer, vacuum pump then add this with new Refrigerant.....higher chance of working because you removed any residual moisture...... especially on older systems. Overall a great idea and solid product .....

Leak Saver arrived promptly. Packaging was a silver bubble envelope and arrived intact. Instructions are easy to read and follow. Simple connection and easy of charging product into line. Will update results when product has ran through system for a couple months.

I cant really vouch for the effectiveness of the product yet. Despite being on my 3rd order I cant really swear it works all that well. It just takes months to judge if its working or not. My judgement so far is if you have a small leak in the evaporator it will do the job. If the leak is in the condenser IMO you wont get great results but then you should be repairing those leaks anyway. B

Bought these last year and had 2 of the 6 did not work but figured I would give them a 2nd chance and bought them again and the same thing happen but now 3 of the 6 did not work

Used it to seal small leaks in a walk-in freezer and refrigerated Deli cases. So far everything has held up great