PRO/SPEC SEALING CAPS AND PLUGS FOR PRO/SPEC FITTINGS AND ADAPTERS TO SEAL OPEN ENDS AND PREVENT LEAKS. MALE PLUGS MECHANICALLY LOCK INTO THE FEMALE FITTINGS OF THE SAME SIZE, PLUGS ARE RETAINED BY THE INTERNAL O-RING ONLY. 6061-T6 BILLET ALUMINUM, PURPLE ANODIZED BODY.
