Description Toto Aquia Series 3.15 inch Dual-Flush Canister Toilet Repair Kit | For One-Piece Toilets Flush Valve: 3.15 inch flush valve with 11 inch tall overflow tube. Seals: Two extra seals included. Fill Valve: 7/8 inch fill valve adjustable from 8-12 inches tall. Canister: The durable polymer canister valve is designed for one piece toilets with 3 inch flush holes. Dual-Flush Button:  Cable controlled half and full flush button. Easy Installation: Installation hardware included for install in many common brands.