
Korky 2011BP
Score: 72/100
Hibbent Toilet Flapper
Score: 80/100Rankings

The Hibbent 2 Pack Toilet Flapper Replacement is a blue rubber flapper designed as a direct replacement for the Gerber 99-788 model, featuring durable material and no-tool installation. It is limited to specific Gerber models, which restricts its universal applicability. It is ideal for DIY repairs in homes with city, hard, or well water, offering a quick, tool-free fix that meets US/Canada plumbing standards.

The Korky 2011BP is a replacement hinge-style flapper designed specifically for Kohler one-piece toilets, replacing OEM parts #84995 and #1000490. Constructed from flexible rubber with stainless steel components, it features a red finish and is engineered to resist chlorine damage for extended lifespan. It is best suited for owners of Kohler one-piece toilets requiring a durable, chlorine-resistant replacement flapper that matches OEM performance.
| Attribute | ![]() | ![]() |
|---|---|---|
2 inches | 3 inchesbest | |
1 count | 2 countbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Material & Durability(1) | ||
Material | Rubber/Stainless Steel | Rubber |
Design & Features(2) | ||
Installation Type | Hinge | No-Tool |
Flapper Type | Hinge | Flapper |
Packaging & Support(1) | ||
Pack Quantity (count) | 1 count | 2 count |
Compatibility & Fit(3) | ||
Flapper Diameter (inches) | 2 inches | 3.0 inches |
Toilet Type Compatibility | One-Piece | Gerber 99-788 |
Flush Valve Size | 2 inches | 3 inches |


Products in the top-left offer the best value (high score, low price).

Installation tutorials and video demonstrations highlight the straightforward nature of the replacement, praising the quick setup and the reliability achieved through proper seal cleaning.
Product pages imply positive sentiment regarding leak prevention and water savings, with video demos suggesting that users find the chain adjustments user-friendly and the overall installation process positive.
