Service Adapter Kits and 134a Couplers

Patented manual couplers adjust easily to R134a service ports with varying dimensions. All metal construction for extra durability. Patented, spring loaded depressor will not damage service valves. Can be removed from service ports regardless of knob position without losing refrigerants. Meets SAE, UL and EPA requirements for containment of refrigerants. Color coded. PATENT no. 5,370,359