Zurn AquaFlush Closet Repair Kit, P6000-ECR-WS, 3.5 gpf, Crosses to Sloan A-38-A, Diaphragm Repair Kit Clog-resistant, linear filtered bypass diaphragms, which provide repeatable flush performance and help prevent run-ons and leaks compared to traditional, dual-filtered diaphragms Chemical-resistant gaskets and deals to extend service life and lower maintenance costs