R134A Adapter Fittings Quick Coupler High Low AC Freon Manifold Gauge Hose Conversion kit, 1/4" SAE HVAC Fits A/C manifold gauge sets (R-134A), coupler interface fits with R134A service ports, 1/4" male flare Adjustable coupler (5-ball style) is compatible with all models Accurate snap lock & knurled grip ring for easy operation, detachable adapter for longer maintenance Aluminum switch, bronze ACME adapter, and nickel plated bronze body 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 R134A Can Tap Refrigerant Dispenser with Tank Adapter Come with R134A can tap refrigerant dispenser and tank adapter, compatible with both 1/4" and 1/2" female fittings ac charging hose. R-134a brass automotive air conditioning dispensing valve, connects all R-134a cans with 1/4" acme threads to all auto R-134a service hoses. Include extra R134A refrigerant tank adapter, 1/4" acme female x 1/2" male flare, connects 1/4" male can tap to 1/2" female hose. Made of heavy duty brass to last under extreme conditions, features thickening seals to prevent leaking, T handle for easy fingertip control.