Huazu R134a Adjustable Quick Coupler, 1/4 inch male fitting compatible, designed to let you quickly and easily service the R134a AC systems in both foreign and domestic cars, trucks and other vehicles.

Product Features:
1. Safe operation: You can open and close the system easily by turning the red/blue knob on the quick coupler adapters, rather than take them off from the service ports. The system can be disconnected at any time, improve the safety of operation.

2. Reduce wear: While using, the adjustable pin allows you to open the service port slowly by twisting the knob, rather than insert directly, reduce the wear for auto AC service port.

3. Multifunctional: Compatible with standard AC manifold gauge, use for AC evacuation (vacuum), diagnostic check, coolant charging and recovery work.

Product specification:

Color: Blue and Red

Condition: 100% new

Material: Metal ( Brass & Aluminum )

Packing Included:
-1 red high pressure R134A adjustable quick coupler
-1 blue low pressure R134A adjustable quick coupler
-2 1/4" male flare adapters
-2 plastic caps for Male flare

Warm Tips:
-Please confirm your AC system type and hose fittings size before ordering.
-Charge R134A by professional or under the guidance of a professional.
-Please wear gloves and goggles when using.
-When use the adjustable quick coupler to open the AC service port Schrader valves, stop twisting after the gauge pointer start move. If you keep twist tighten, it can wear Schrader valves.