Plumb Craft 7030500N Perfect Flush Adjustable Anti-Siphon Toilet Tank Adjustable toilet fill valve from 9" to 14". features a fast powerful flush & quiet water fill Anti-siphon technology provides water supply protection keeping your drinking water safe Exclusive 2 piece seal made of high quality compounds, resistant to hard water/chlorine corrosion Toilet repair kit/float valve Fits most 2 piece toilets including: American standard, KOHLER, etc. Easy to install. Toilet repair kit includes easy detailed instructions Prevents toilet water from backing up into drinking water Quiet Exclusive two piece seal is composed of the highest quality compounds Uses space age plastic to provide a more durable longer lasting product Patented after installation height adjustment allows for the height to be adjusted from 9-Inch to 14-Inch , ensures you will have the right amount of water for a powerful flush