Gerber Flapper, 3 inch Blue Silicone Flapper by NuFlush

Gerber Flapper, 3 inch Blue Silicone Flapper by NuFlushFits Gerber Allerton (28-580, 28-584, 28-585), Avalanche (21-014, 28-890, 28-894), Brianne (28-183), Logan Square (28-530), Maxwell (21-017, 28-970, 28-980, 28-990, 28-994, 28-995), and Viper (28-570) toilets Three inch Rubberized Silicone Flapper Valve Gerber Allerton, Avalanche, Brianne, Logan Square ,Maxwell Three inch Flapper fits most Three inch Toilets Great seal, Easy to put on & off & Clean with vinegar1.Toilet flapper replacement compatible with Gerber 99-788 2.Replace old, leaky and inefficient toilet flappers to save on expensive water waste with this large toilet flapper 3.The long lasting blue rubber fit for city water treatment, hard water, and well water. 4.No tools are required for installation.Includes stainless steel chain with clip hook. 5.Meets US and Canada industry standards for plumbing code.