KT INDUSTRIES SCREW COUPLING M22F TO 3/8″ MALE NPT FOR HIGH PRESSURE CONNECTIONS by | Jul 23, 2026KT INDUSTRIES SCREW COUPLING M22F TO 3/8″ MALE NPT! M22F TO 3/8″ MALE NPT, USED EVERYWHERE HIGH-PRESSURE CONNECTIONS ARE. POWER WASHER COUPLING OR HIGH-PRESSURE CONNECTION! FOR CONNECTING HOSES TOGETHER.