Flush volumes start at 1.28 gpf/4.8 Lpf for greater water savings;Fixed volume piston with filtered O-ring bypass and ADA-compliant, metal oscillating non-hold-open handle ensure reliable, water-efficient operation;Integrity of the product is maintained with control stop plug;Durability is facilitated with high copper, low zinc brass castings for dezincification resistance and components made from PERMEX rubber compound for chloramine resistance;Adjustable tailpiece;Valve body, Cover, Tailpiece and Control Stop shall be in compliance with ASTM Alloy Classification for Semi-Red Brass;Valve shall be in compliance to the applicable sections of ASSE 1037