Self-cleaning brass piston with integral wiper spring prevents clogging and reduces maintenance. Colors/finish: Polished ChromeMaterials: Brass, MetalQuantity: One (1)Setting: IndoorDimensions: 13.8 inches long x 3.5 inches high x 8.7 inches widePiston operation delivers superior flush accuracy and repeatabilityPiston valve remains closed and does not need to be reset after loss of water pressureNon-hold open handlePositive seal ensures leak-free performanceAssembly required.