Do it Best Toilet Repair Kit
Contains: Adjustable anti-siphon toilet tank repair valve, tank master super sure shot flapper, refill tube, and clip. The valve adjusts from 9" to 14" to permit correct fit and most efficient flush level, positive shut off, easy-to-install. Silent reliable operation. Super shot flapper is chemical- resistant. Thermoplastic material will not rot, even in harsh water. Easy-to-install.