Zurn's Temp-Gard® RK7000-100 rescues commercial buildings from water damage and growing water costs that can come from leaky shower valves. This five-piece kit contains a plastic cap gasket, a metal O-ring washer, a metal O-ring , a black rubber packing washer, and graphite packing to repair and further prevent shower valve leakage. Each piece is manufactured with long-lasting durability in mind, making this kit a wise choice for commercial showering applications.