Compatible with 3-inch Gerber 99-788: High efficiency and long life lasting toilet flapper replacement kit for 3 inch toilet flush valves. It is compatible with Gerber toilet flapper 99-788. NOTE: It is not universal and incompatible with Kohler toilets and Mansfield toilets. Please check the middle size and attachment arm size of the toilet flapper before purchase
• Stop Silent Tank Leaks: Tired of your toilet tank refilling nonstop all day and night? Our premium toilet flapper replacement kit quickly fixes leaks-preventing ghost flushing and running toilets that waste up to 200 gallons daily. This easy-to-install solution reduces water bills and protects your plumbing long-term
• Heavy-Duty Chlorine-Resistant Rubber: iFealClear toilet stopper flapper is made of chlorine-resistant rubber for superior durability and corrosion resistance, which keeps the function stable even under hard water conditions. Equipped with rust-proof stainless steel chain for preventing breakage or jamming
• Easy to Install: No tools need for installation, package include stainless steel chains with clip hooks. Use this toilet flapper assembly compatible with gerber toilet parts to replace the old leaky one. Solve the running toilet tank easily. Please make sure that there is no dust or dirt accumulated on the toilet flapper and the toilet flush valve to prevent water leakage
• Precise Measurements: Kindly make sure to measure the opening in your toilet tank or your old toilet flapper is 3 inches. The length of the chain is 10 inches. The holes of the two toilet flapper attachment arms are of the same size. The length between attachment arms is 2.83 inches and the width of attachment arm is 1 inch