Marketing InformationZurn® Z6200-HET Metroflush® piston operated exposed closet flush valve for 1.28 gpf water closet - the Ecovantage® Metroflush® is an exposed, quiet-type, chrome plated flushometer valve with polished exterior. Complete with Zurn® 1.28 gpf MetroVantage®, chloramine-resistant, piston with a clog-resistant, filtered bypass. The valve is ADA compliant with a non-hold open and leak-free handle feature, high back pressure vacuum breaker, one piece hex coupling nut, adjustable tailpiece, spud coupling and flange for top spud connection. Control stop has internal siphon guard protection, sweat solder kit, and a cast wall flange with set screw. Internal seals are made of chloramine-resistant materials.