Engineered for efficient water regulation, KOHLER GP1068030 fill valve ensures reliable performance in your toilet tank. Designed for use with Rialto, San Raphael, and Revival one-piece toilets, this low-profile fill valve maintains optimal water levels and quickly refills the tank after each flush. Its sanitary construction helps promote a cleaner tank environment while supporting consistent flushing power. Easy-to-install, this fill valve is a dependable solution for maintaining your toilet’s functionality.