Korky 818Z WaterWISE Toilet Fill Valve and Flapper Kit - Save Water and Detect Product Description Designed to minimize costly water loss, the WaterWI$E Fill Valve is the only dual shut-off fill valve that detects flapper leaks and hang-ups. Saves water due to leaks by not refilling the tank during a slow flapper leak and automatically shuts off if flapper is stuck open. Designed to fit more toilets, this toilet fill valve adjusts from 7-3/4" to 13-1/2", fitting large and small tanks. The WaterWI$E Fill Valve is quieter than other fill valves. Included in the kit is the Korky Plus 2 in. toilet tank flapper. The universal flapper is constructed from durable rubber and offers chlorine . Easy to install, the 818Z includes: (1) 528Z Fill Valve, (1) 2001 Flapper, (1) Refill Tube, (1) Metal Refill Tube Clip, (1) Mounting Nut, (1) Cone Washer, (1) Coupling Nut, (1) Tamper Proof Key and (1) Instructions. From the Manufacturer Designed to minimize costly water loss, the WaterWI$E Fill Valve is the only dual shut-off fill valve that detects flapper leaks and hang-ups. Saves water due to leaks by not refilling the tank during a slow flapper leak and automatically shuts off if flapper is stuck open. Designed to fit more toilets, this toilet fill valve adjusts from 7-3/4" to 13-1/2", fitting large and small tanks. The WaterWI$E Fill Valve is quieter than other fill valves. Included in the kit is the Korky Plus 2 in. toilet tank flapper. The universal flapper is constructed from durable rubber and offers chlorine. Easy to install, the 818Z includes: (1) 528Z Fill Valve, (1) 2001 Flapper, (1) Refill Tube, (1) Metal Refill Tube Clip, (1) Mounting Nut, (1) Cone Washer, (1) Coupling Nut, (1) Tamper Proof Key and (1) Instructions. Features DUAL SHUT-OFF VALVE: Minimize costly water loss with this fill valve toilet part that detects flapper leaks and hang-ups. DOES NOT REFILL TANK DURING A SLOW FLAPPER LEAK. ADJUSTABLE VALVE: The fill valve is designed to fit most large and small toilet tanks. Adjusts from 7-3/4" to 13-1/2". Includes fill valve, hardware and easy to read instructions. LONG LASTING CHLORAZONE red rubber chlorine , city water treatment, hard well water. WHY KORKY: Our high quality toilet products are universal specific to both older modern toilet models. Our repair parts are easy to install made exclusively from long lasting chlorazone red rubber. REPLACEMENT TOILET PARTS: Try Korky Toilet Repair because we continue to commit to designing toilet repair parts that are unviersal to fit the majority of toilets. Designed manufactured in Wisconsin. USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.