Gerber 3Inch Toilet Flapper Replacement – Compatible with Model 99788 Upgrade and your toilet quickly and efficiently with this professionalgrade 3inch toilet flapper, designed specifically to old, worn, or leaking flappers in Gerber toilets. for resolving leaks, improving flush performance, and saving on water bills. Key Features and Benefits: Professional Fit and Compatibility Designed to be a precise replacement for Gerber 99788 models Fits flushing valves with a 3inch diameter Dimensions: 4.9 x 3.66 inches – optimized for proper sealing and reliable operation Quality Rubber Construction Made from durable, flexible rubber that provides sealing Soft material rebounds quickly after each flush, improving performance and reducing water waste Longlasting build resists wear, cracking, and deterioration Standard Design for Performance Meets US and Canadian industry standards for plumbing specifications Ensures the flapper stays open long enough for a strong flush, letting sufficient water flow from the tank to clean the bowl effectively Easy, Tool Installation Simple replacement process that can be completed by most users without professional help Stepbystep replacement: 1. Turn off the water supply to the toilet 2. Drain remaining water from the tank 3. Remove the old flapper 4. Attach the flapper to the flush valve and connect the chain If the old flapper is stuck, it can be cut for removal to avoid damaging other parts CostEffective Maintenance Solution Includes two Gerbercompatible toilet flappers – one for immediate use and one spare Allows you to fix leaks yourself without calling a plumber, reducing expensive service costs Practical Use Scenarios: 1. a leaking or worn flapper to instantly stop water waste and lower water bills 2. Keep a spare flapper in your toolbox for quick repairs in rental properties or offices 3. Restore proper flushing performance in bathrooms used frequently by guests or customers Important Note: Ensure your toilet tank opening measures 3 inches before . This flapper is specifically engineered for use with Gerber toilets requiring a 3inch flushing valve.