Description
Coupler Interface Fits with R134 Service Ports,1/4" Male Flare..Aluminum switch, bronze ACME adapter, and nickel plated bronze body..Adjustable rotary switch for low and high adjustament..Accurate snap lock and knurled grip ring for easy operation; detachable copper adapter for easy maintenance..Method of use: connect bottoms with vehicle's R134a service port; connect the ACME adapter with the refrigerant hose; turn on/off the switch at top to turn it on/off.