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

A must for pulling vacuum on any ductless minisplit.

The adapter was needed for my gauges to work with the mini split system installed.

Works as expected!

Wrong website description. This is not a quick connect fitting.

Some reviews say not needed but my Senville definitely required the larger 5/16 connector. Yellow Jacket could have offered the option when I bought their gauge. Lost valuable time waiting for this pricey adapter had I known. Check your unit connections when buying gauges!

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.

Needed to charge my air conditioner.....

Worked as expected for my Pioneer 9000 btu mini split.

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.