LIYYOORefrigerant Charging Hoses with Diagnostic Manifold Gauge Set for R410A R22 R404 Refrigerant charging,1/4" Thread Hose Set 60" Red/Yellow/Blue (3pcs) with 2 Quick Coupler

A very good set, and there are adapters to adapt to different air-conditioning outdoor units and refrigerant，There is also a glass window with refrigerant。

Bought this set to do work on my hvac unit being brother in law in another state. Worked great

Sturdy well built. Doesn’t feel like cheap junk that will break after a few uses. The hook to hang it on a/c did rust from being outside in rain, but it is just a hanger that isn’t needed for the use of it. Great value for the money. I would buy again.

I installed a DIY ductless mini-split A/C unit on our house. Part of the installation requires vacuuming the line sets while monitoring with a set of gauges. Local store had the vacuum pump for rent but no one had gauges appropriate for the refrigerant used in a home unit. I bought this to fill that need and it worked perfectly. Be advised that it comes with no directions whatsoever but the A/C installation manual walked through the process so I didn't have to figure it out on my own. Hoses were in good shape and everything works. Came with two adapters and some spare gaskets for the connectors. Definitely worth the money.

The gauge isn’t accurate, it arrived showing a pressure below atmosphere so this isn’t helpful. I won’t return even though I could because it would take more time than it’s worth, just don’t buy it and save yourself the trouble.. be safe