AURELIO TECH Adjustable R134A Adapter Fittings High-Low Quick Coupler AC Car Air Conditioner Refrigeration Manifold Gauge Hose Connector, 1/4 SAE HVAC

The quality seems to be there. I did the job one would expect without any hassle at all. The adapters could be used with my existing equipment.

I had read some of the reviews that said that this product didn't fit properly and was hard to remove when installed on the refrigeration ports. I didn't experience this at all. When used properly these adapters work very well. They don't leak and attach and come off like they are supposed to. These are good quality and a good value.

Good quality and easy to turn on and off. Use for recharge AC automobile.

Valves are of good quality. Labels come off easily if come into contact with solvent based chemicals. Which seem normal with this priced item. These quick connect valve are perfect replacement for budget minded consumers.

These adapters worked great on my oil injector. They feel heavy duty and decent quality.

Work just as expected can't complain. So far so good on multiple jobs

Build in shut off valves work, and save time hooking up, and charging/servicing AC units!

They perfromed better than expected. Highly recommend for easy proper a/c charging.

good