This innovative valve allows for flushing even with low water pressure. The chrome finish makes it look both decorative and practical. Polished ChromeMaterials: Brass, MetalQuantity: One (1)Setting: IndoorDimensions:4.1 inches high x 10.3 inches wide x 17.1 inches longExclusive Pressure Compensation feature allows the flush valve to deliver a constant flush volume regardless of water pressure. Flush Valve can not be adjusted to deliver more or less water, ensuring water savings and performance Electronic flush valve with Selectronic proximity system for hygienic Hands Free. operation Self-Cleaning Piston helps prevent clogging and reduces maintenancePositive Seal ensures leak-free performance without the chance of warping or cracking Fully Mechanical Manual OveSelf-Cleaning Piston helps prevent clogging & reduces maintenancePositive Seal ensures leak-free performance without the chance of warping or cracking Assembly required.