Zurn AquaFlush Closet Rebuild Kit, P6000-ECR-WS1-RK, 1.6 gpf, Diaphragm Rebuild Kit Diaphragm Repair Kit Handle Repair Kit Vacuum Breaker Repair Kit Tailpiece O-Ring Clog-resistant, linear filtered bypass diaphragms, which provide repeatable flush performance and help prevent run-ons and leaks, dual-filtered diaphragms Chemical-resistant gaskets and deals to extend service life and lower maintenance costs