Mastercool82934 Low Side Coupler, Blue

I had previously used another name brand coupler that took me hours to connect every time. This coupler engaged on the first try in a matter of seconds. I could not believe it. I disconnected and connected again just as easy. The coupler sealed without leaking and made this a quick job to add the R134a. Would definitely recommend this coupler.

This is the same low side connector that comes with the professional Matco stools air conditioning servicing kit, as Mastercool makes the tool for Matco. Connector uses 6 steel balls to connect to the low pressure port (those cheap AC recharge single-hose kits use 4 plastic balls which leads to a poor seal and leaking). I chose JB Tool as I have purchased a few items from them in the past 2 years and they are a great seller, never had a single issue.

Replaced an old valve, now my gauge set works good as new.

I really like mastercool products and this coupler is great.

work good

Bought to replace a parker version that got stuck open. Works great the few times I have used is so far.

Smooth operation, really like this connector

I like that this also seals the end of a hose even when disconnected from the port.

Buen producto

Excelente calidad y precio