Air Conditioner Ball Valve 1/4" SAE Adapter, Straight Shut-Off Valve for HVAC A/C Automotive Service Tools, Fits for R134A R22 R12 R410A Refrigerant

FYI I am a professional refrigeration service tech. The actual valves I received have a rubber coating on the valve handles. The pictures shows without The valve to Schrader seals work well and may even be better than the black rubber ones. All in all they seem to be made well and should stand the test of time. For the price if the last a year I think they are worth it. Even the name brands eventually fail!.

A convienience item for charging an HVAC system or anything that takes Freon . It worked very well 4 me & helped to reduce any loss of refrigerant or leak sealant .

Not much to say other than it does what it suppose to and it holds without leaking. I had quick disconnects with shut off valves on the high and low side of a gauge set but didn't have anything for the center vent lines. Needed a shut off valve to place on the vent line (yellow) of a gauge set. Had this valve attached to the end of the the manifold gauge set vent line and it allowed me to quickly change over from a vacuum pump to a refrigerant tank without losing or having to purge the vent line when switching over from a vacuum pump to refrigerant tank. I don't use this everyday so I can't really say the longevity of the valve but for what I need it for it works perfectly fine. When I'm done using it, I leave it on a refrigerant bottle as a second shut off valve just in case the tank valve leaks while in storage.

Well, only last one month. I was using it constantly to check pressures for almost a month, then started leaking refrigerant. But I guess that what we get for the price.

Perfect addition to the vacuum pump I bought that didn't come with one. It's necessary to check for leaks after vacuuming down. I leave the system overnight with the pump off and valve closed, if the vacuum holds then and only then I'm happy.

This valve is a very handy tool to have when I am using my R134a gauge set on my car(s) to recharge the refrigerant. The valve seems like its made pretty sturdy. I'm happy with it so far.

Worked for me on a mini-split install.

This cut off valve fits R12 gauges and not R134A gauges' was needing a cut off valve for R134A gauges and this cut off valve was too small.

Está válvula es increíble. Superó mis expectativas en cuanto a la calidad del elemento. De gran utilidad para retirar la manguera de alta sin tirar refrigerante. Se las recomiendo

Great item for any AC technician

leckrate nach kurzem ausgasen gemessen mit 1e-5 mbar l/sek, also sehr dicht. nach dem erreichen des dampfdruckplateaus keine sichtbare leckrate über nacht, also ist die leckrate hauptsächlich über die restwassermoleküle entstanden. von mir klare kaufempfehlung.

Good product allowing to leave in place and isaolate, then come back later a few weeks later to reattach manometers and check if any leaks

Fitted to the end of my yellow hose, used a couple of times and does what it should, will now order another for my black hose and maye a spare.