Leak Saver Direct Inject UV - Refrigerant Leak Sealer with Added UV Dye to Detect Large Leaks - for AC, Refrigeration, and Automotive Systems Up to 5 Tons - Compatible with All Refrigerants - 3 Packs

Very easy to use

Shipping was fast and is very easy to install. Only reason I dont give 5 stars is because no leak stop is 100%.

I use this product on refrigerators and have found it yo be a great way of both repairing a leak and identifying a leak that will need further repair while allowing the unit to work for the customer in between visits. I will continue to use

Have bought and used this product several times and about 50% of the time they will not inject into the system. I have used pliers to tighten them onto the valves as far as they can and they still fail to engage the system ports. Even went to the trouble of buying new adapters just for this purpose and still no joy. Some of them will work just fine, no additional tools needed and the perform very well. Just recommend the manufacturer take another look at the design.

The best thing that these things are so easy to install in your system. And are great for those little small leaks that are hard to find. It’ll probably stop the leak or let you know where it’s leaking with a UV lite. Awesome

This product was super easy to use if you have the right equipment. I didn't have any issues with the cartridge depressing the Shrader valve. I used 2 cartridges in my 3.5-ton unit, and it stopped the leak. I understand that this is not a forever fix but the thing I like is that with the built-in dye it will be easier to find the leak with a UV light and repair it.

Works okay but must remove valve core. Has core depressive but usually does not reach valve core. If you do not remove valve core all of leak saver will leak out when you remove tool with nothing entering system

Identified the leak in 24 hours. Used that for a warranty claim on a brand new defective coil.

Flashlight and glasses are not included ordered 3 times not as shown sealer working so far so good