Made of: Aluminum switch, bronze adapter, and nickel plated bronze body, making the detachable adapter for longer maintenance.
Special Design for No leakage: Two additional brass joints can more easily connect valve and threads inside, making a great snaps on / off and avoiding the Freon leakage which always happen in the past.
Compatible and Fit: Fitting for A/C manifold gauge set (R-134A) type and R134A service ports,1/4" male flare as well as 5-ball style coupler.
Method of ues: Connect bottoms with vehicle's R134A service port; connect the adapter with the refrigerant hose; turn on/off the switch at top to turn it on/off.
Wide Applications: Fits high low A/C 1/4" SAE HVAC, quick coupler interface fits with R134A service ports for auto-owner, auto garage and auto lover.