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

These are expensive at the supply house

Great items!

Shaped to allow hookup to my mini split unit, solid build, work great

Satisfied

Very good quality and worth its price

Needed to charge my air conditioner.....

Great Adapter for the newer mini-splits on the market. You will need this pull a vacuum before releasing the refrigerant. Adapter is quality made and tightens up to a leak proof seal with just finger pressure. This one was among the cheapest available and from a brand I know.

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

Good product -- allowed me to use my vacuum pump on a 12k Pioneer mini split AC unit.

No leaks, works well... all brass construction. Should last for many years.