MATE® TW157 is designed for filling air storage cylinders. Existing filling systems equipped with wrench-tight nuts and connectors can be converted without problems. CLICKMATE® TW157 is rated for pressure ranges up to 6,000 psi. The WEH connector provides a connection in seconds to the CGA thread of the cylinder valve without hand / wrench tightening. Just place the connector onto the cylinder valve until it stops. The connection is made by lowering the operating lever through 90° which locks the split jaws onto the cylinder valve. The integrated safety peg prevents a disconnection under pressure.