
Hibbent Toilet Flapper
Score: 80/100
Blissvent Toilet Flapper
Score: 72/100Rankings

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.

This is a 2-pack of 3-inch blue rubber toilet flappers designed for high-efficiency toilets, specifically compatible with the Gerber 99-788 model. It features tool-free installation and water-resistant properties suitable for hard water conditions. It is best suited for homeowners with Gerber Viper Toilets needing a water-saving replacement.
| Attribute | ![]() | ![]() |
|---|---|---|
3 inches | 3.625 inchesbest | |
2 countbest | 2 countbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Design & Features(1) | ||
Installation Type | No-Tool | Tool-free |
Packaging & Support(1) | ||
Certifications | US and Canada Plumbing Code Standards | US/Canada Plumbing Codes |
Compatibility & Fit(2) | ||
Flapper Diameter (inches) | 3.0 inches | 3.625 inches |
Toilet Type Compatibility | Gerber 99-788 | Gerber 99-788 / HET |

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.




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