Battery-powered sensor operated flush valve. Chemical resistant gaskets and seals for extended service life with lower maintenance costs. Battery-powered, 4 AA's, with 3-year battery life, standard.Clog resistant piston operation with manual override button. This item is in the category "Home & Garden\Bath\Toilets & Bidets\Toilets". The seller is "ace_kyproducts" and is located in this country: US. This item can be shipped to United States.