Product description
📣 It can control on/off for refill gas , got valve can be block to avoid gas be come out.
◈ low pressure = blue , high pressure = red
◈ normally connect this adapter to car aircond , for checking test gas pressure or refill gas use
◈ one side adapter is clip into car socket valve of aircond , and other side is connect with hose (r22/r134/r12)
◈ can be adjust, so when connect it, can adjust gas on/off or pressure level
◈ nice quality and easy connect