
Gerber toilets have a handy model number marking for replacement flaps on the inside of the water tank. Mine was marked Gerber 99-647. When I went to Revain to order this part, 3 out of 7 customer reviews said it didn't work. I ordered it anyway, installed it in less than 5 minutes and it works great. I am ordering a second Gerber 99-647 muffler from Revain as I have a second Gerber toilet of the same model and age that will need a muffler replacement at some point.

🚽 Fluidmaster 7513: Premium Extra Thick Wax Toilet Bowl Gasket with Flange - Ideal for 3-Inch and 4-Inch Waste Lines
9 Review

🚰 Efficient Fluidmaster 703AP4 Fill Valve: Quick and Easy Installation - 1 Pack
9 Review

55" TV Samsung UE55NU7100U 2018 LED, HDR, charcoal black
14 Review

🚽 Korky 6081BP Strongarm Tank Lever - Versatile Design for Front Angled Side Left and Right Mount Toilets, Oil-Rubbed Bronze Finish, Faucet Style
9 Review

Chums Original Cotton Eyewear Retainer - Adjustable Unisex Sunglasses Keeper (Standard-End)
27 Review

Adult Shooting Ear Protection Earmuffs - Noise Cancelling Safety Ear Muffs For Hearing Reduction
26 Review

2 Long Eyeglass Chains For Men And Women - SIGONNA Eyeglasses String Holder Strap Chain - Neck Retainer For Eye Glasses And Sunglasses - Rope Lanyard - 2 Pack In Black
39 Review

Stay Safe And Visible With SHORFUNE High Visibility Safety Vest - ANSI/ISEA Certified, Orange With Pockets, Mic Tabs, And Reflective Strips In Medium Size
30 Review