3/8" 1/2" 5/8" 3/4" Auto Ac Disconnect Quick Fuel Line Spring Lock

For 3/8", 1/2", 5/8" and 3/4" couplers. 4pc kits: 3/8" (Red), 5/8" (Black), 1/2" (Blue), 3/4" (White). Spring-loaded design and durable plastic body. Release spring lock connector on air conditioning line, to fit quick-connect fuel line fasteners.