Couplers, 1/4 in

Features: Eliminates hazardous discharge of refrigerant and oil from high side of system when disconnecting hoses | Prevents freezing hand when disconnecting, especially when servicing heat pumps in cold weather | Automatic shutoff of hose ends permits discharging high side hose through manifold into low side | Automatic full depression of core valves without adjustment, regardless of core position | Coupler halves separately connect to access fitting and hose end, then easy push/pull operation automatically opens or closes system without loss of refrigerant | Simplifies operation of charging critical amount of refrigerant into small systems