Made from high quality brass, fine workmanship, corrosion resistant and durable.Flush thoroughly, no peculiar smell is left, avoiding infection of the bacteria effectively.Convenient to install and replace.The valve is installed inside, easy to adjust water flow and convenient to maintain.Easy to use and fit for most toilets, universal and practical; great for home, hotel, bar, pub, club, etc.Specification:Materi: BrassSize: 72x330mm (WxL)Inlet Water Hose Dia. DN15 (G1/2")Voltage: DC 6VPower Supply: 4x AA batteries (Not Included)Applicable water pressure: 0.05Mpa0.8MpaRated flow rate: 915L/Work cycle (water pressure 0.3Mpa)Applicable temperature :170CAmbient humidity: 95%RHPackage Includes: 1 Piece Automatic Urinal Flush Valve