This 36 in long , 3/4 in ID, moveable grade gas connector is composed of a 304 stainless steel corrugated tube covered with a tight weave stainless steel braid. The outside hose has an antimicrobial PVC coating that inhibits growth of bacteria, mildew and mold on the connector. Rotational technology fittings on both ends of the connector rotate 360 deg, greatly reducing stress at both connector ends.