1-1/2″ FITTING ALUMINUM CAMLOCK – MALE BARB X FEMALE COUPLER THREAD CAMLOCK ENDS HELP EASILY ATTACH HOSES AND TUBING TO WATER PUMPS. DUST CAPS & PLUGS HELP SEAL INTAKE AND OUTLET OPENINGS ON WATER PUMPS AND HOSES FOR CLOSURE WHEN NOT IN USE. REPLACE OLD, WORN OUT OR BROKEN CAMLOCK ENDS AND COUPLERS. CAMLOCKS ARE MADE OF LIGHTWEIGHT, DURABLE ALUMINUM. SEALS OUT LEAKS AND PREVENTS DEBRIS AND MATERIALS FROM ENTERING PUMP.