Quick release metal hose plug with 3/4quot; female screw. New silverline pack of 2 water stop hose connectors 1/2. 4x 1/4 bsp air line hose fittings quick release coupler. 4x coupler connectors 1/4quot; bsp air line hose fittings. Air line hose connector fitting female quick release 1/4. Quick release brass tap connector female fit to 1/2. Quick release hose connector grun roofing superstore. 4 pieces air line hose fitting connector quick release.