Chinco 2 Pcs R410a Adapter for Mini Split Charging Adapter Vacuum Port with Thimble 5/16 Inch Female Quick Coupler to 1/4 Inch Male Flare for Air Conditioner HVAC Refrigeration (45° Angle)

Works perfectly! This adapter fit my mini split system without any issues and made the job quick and easy. Solid brass construction feels durable and leak-free, and the connection is secure. Exactly what I needed for R410a service—great quality at a great price. Highly recommend for HVAC work!

Worked well. I used it to install two Pioneer Mini-Split systems. No problems.

Fit perfectly onto service port of my DELLA 4 zone 36k BTU mini split condenser. I installed (DIY) 36K BTU mini split for my home, system was precharged, but it required all the linesets to be vacuumed before releasing refrigerant into the lines. I bought for this a small compressor that came with adapter for a service port. The original adapter that came with compressor looked ok, but was very difficults to put on service port, required me to use a grip pliers to make it very tight so it would not bleed air. It was very difficult to get it tide as it was poorly made. After trying several times to not much luck, I looked at revies of these compressors and everyone was complaining about poorly made adapter that does not hold vacuum as it should.. So i just bought this new adapter and it worked like a charm. I screwed it on to the service port EASY with my hands only and it kept vacuum super tide, no leakage at all. After I released the refrigerant into the lineset, the adapter came off so easy, that I lost maybe one second of internal pressure, and AC started to run like a charm! Now the whole home is nicely cooled THANKS to this well made little device!

Perfect solution for AC gauges to install a mini split AC system

4 stars only because these do not have Schrader valves in them, so they can be VERY messy if not used just right. Ball valves on your hoses will be a big help with these. Otherwise, they work great for working on several brands on mini split condensers/heat pumps.

Worth every penny. Excellent build quality strong and worked great. Easy to use. And having a couple was perfect, ants love them too much.. worked great with two different brands..

Just what I needed for mini split install. But leaked at joint. I soldered instead of returning. Worked great then!

Necessary for R34 refrigerant in a mini split install.

Bought this Port adapter to connect my vacuum pump to my Senville split phase A/C unit. Worked great.