Both ends come w 1in NPT male swivel link fittings while one end has a two-piece quick disconnect for fast and easy installation and the 90 degree elbow street elbow ball valve and restraining cable help further alleviate stress on the hose for optimum performance. This 48in long connector is coated for long-lasting durability.HG-4E-48SK-PS Safe-T-Link 48in Coated Gas Connector Hose w Swivel Fittings, Quick Disconnect For ultimate convenience this gas hose comes w the POSI-SET wheel placement system so that you can securely place castered equipment at a fixed distance from the wall making it easier to clean floors and return equipment as needed..