U.S. Seal Pool Service Kits are specifically designed for use in applications using salt chlorine generators, ozonators, or hydrogen peroxide based sanitizers. The seals offer better resistance to abrasion, heat and chemicals due to the Viton® elostomer sintered carbon graphite rotating face and polished ceramic stationary face. Kits Include: U.S. Seal MFG.'s genuine PS - Ozone/Salt Service seal. All gaskets and o-rings needed for a complete repair. Alcohol wipe to clean faces before final assembly.