GASKETS: CUTS INSTALLATION TIME IN HALF. ADHESIVE-BACKED GASKET MATERIAL HELPS PREVENT BREAKING OF WATER OUTLET. GASKET CEMENT IS NOT NEEDED. APPROVED FOR MARINE APPLICATIONS. SELF-ADHESIVE BACKING HOLDS THERMOSTAT IN PLACE WHILE WATER OUTLET IS BEING INSTALLED. RUBBER THERMOSTAT SEALS ALSO AVAILABLE. SEALS: FITS SECURELY AROUND THERMOSTAT VALVE TO PREVENT LEAKAGE. APPROVED FOR MARINE APPLICATIONS. CORROSION-RESISTANT STEEL CONSTRUCTION. SPECIALLY CONSTRUCTED TO ASSURE ACCURATE FIT.