Yellow Jacket 19173 5/16 Female Quick Couplers x 1/4 Male Flare

Needed to hook up manifold gauges to most mini split service ports. Good quality. The only thing that could make it better is if it had a shutoff valve.

Good weight

Definitely the way to go for an adapter. I bought off brand before and they don’t last and need channel locks to ensure no leakage. These are easier to tighten down and fit on units.

I do HVAC and use these as they fit the service ports on most mini splits that my normal hose wont

Just what I needed.

Guess I did not read 5/16

This coupler worked perfectly and the mini-split is running great!

Works ok. You cant go wrong with Yellow Jacket.

work well

Great way to adapt to the ductless 5/16 coupling, and retain freon in the line.