KAISAL 3 Way Manifold Gauge Set for R1234YF R404A R12 Refrigerant Dual Dial Manifold Gauge Automotive AC Gauge Set with 3PCS 5FT Hoses AC Recharge Kit with 1234YF Quick Coupler Can Tap

All the components appear well made with all fittings being in brass. The manifold is solid, but the hanging hook doesn’t work well, as the pull of the hoses caused it to rotate in almost any direction. This is an issue, because as I tried to turn it to face me, that caused the screw fittings to undo themselves as their threads are coarse, and straight away I had a leak - fortunately I had eye protection. The sealing of hose to manifold looks like a Teflon ring rather than an o ring, so how tight should it be? That question could not be answered as there are no instructions whatsoever, although I understand how to use it. Similarly, there is no storage case, just a plain cardboard box, which is quite an omission at this price. So it works ok, but real care required in handling to avoid nasty leaks.