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. 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.