The Korky Toilet Fill Valve Replacement Cap Fits Korky Quietfill (528), Platinum (528Mp) And Toto Fill Valves (528T & 528Gt). The Replacement Cap Features Plastic Construction With A Premium, Long Lasting Rubber Diaphragm. Easy To Install, The R528 Toilet Parts Include: (1) Assembly Cap. Fill Valve Sold Separately. 

▪ Replacement Cap For Korky Quietfill, Platinum And Toto Toilet Fill Valves
▪ Also Fits Old Hunter 528 Toilet Fill Valves 
▪ Easy To Install And Adjust
▪ Replaces Old Technologies Such As Ballcocks
▪ Made In The USA
▪ Includes: (1) Replacement Cap Assembly