Description Fill Valve for Bottom Water Fed Toilets Fill Valves are designed to fill the toilet tank with water from the water supply line after it has been emptied by a flush Anti-Siphon Fill Valve Water Saver Corrosion-resistant Material Universal fit for both 1 and 2 piece toilets Universal toilet fill valve for American Standard, Eljer Kohler and Mansfield Fixes: running, noisy, slow refill, and weak flushing toilets Easy to install