iFealClear Toilet Flapper for Gerber 99-788 3 Inch
- Shape: Round
- Item Weight: 0.11 pounds
- Color: Blue-1 Pack
- Product Dimensions: 4.8 × 3.6 × 1.5 inches
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A targeted fix for a leaking Gerber 99-788 flapper, but confirm the 3 inch opening and attachment arm spacing before buying since it's not a universal part.
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ASIN: B088Z828F2Model: 1 packCategory: Toilet Flappers
Overview
A 3 inch toilet flapper replacement kit built specifically to fit Gerber 99-788 flush valves, with thick chlorine-resistant rubber and an adjustable stainless steel chain.
IFealClear states plainly that this is not a universal part: it's made for Gerber's 3 inch valve and the listing warns it won't fit Kohler or Mansfield toilets, so measuring the flapper's attachment arm spacing against your old part matters before ordering. The pitch centers on stopping the constant tank refilling of a worn flapper rather than general flush performance.
- Built for Gerber 99-788 flush valves
- 3 inch flapper size
- Chlorine-resistant thick rubber seal
- 10 inch stainless steel chain included
Who it's for
Owners of a Gerber toilet using the 99-788 flush valve who need a matched 3 inch replacement. Not for Kohler or Mansfield toilets, which the listing specifically excludes.
Pros and cons
- Matched to Gerber 99-788 flush valves
- Chlorine-resistant rubber seal
- Rust-proof stainless steel chain with clip hooks
- No tools needed to install
- Explicitly incompatible with Kohler and Mansfield toilets
- Requires measuring attachment arm spacing first
Performance notes
The kit addresses a leaking flapper that lets water trickle past the seal, refilling the tank silently and running up water bills. Chlorine-resistant rubber and a rust-proof stainless steel chain target the two ways flappers typically fail under hard water or tank tablets. Listed measurements are a 10 inch chain and attachment arms spaced 2.83 inches apart at 1 inch wide, worth checking against your old flapper before ordering.
Specifications
| Brand | iFealClear |
|---|---|
| Model | 1 pack |
| Dimensions & fit | |
| Item Weight | 0.11 pounds |
| Product Dimensions | 4.8 × 3.6 × 1.5 inches |
| Construction & materials | |
| Color | Blue-1 Pack |
| Included components | |
| Included Components | Stainless Steel Chain With Clip Hooks |
| Item Package Quantity | 1 |
| Other details | |
| Shape | Round |
| Style | Compatible With 3" Gerber 99-788 |
| Item Model Number | 1 Pack |
| Part Number | CA-Ifflappergerber-Blue |
Frequently asked questions
Does this fit Kohler or Mansfield toilets?
No, the listing states it is not universal and is incompatible with Kohler and Mansfield toilets.
What tools are needed to install it?
None, the kit installs with the included stainless steel chain and clip hooks.
What are the attachment arm measurements?
The listing gives 2.83 inches between attachment arms and a 1 inch arm width, with a 10 inch chain.