
Blissvent Toilet Flapper
Score: 72/100
Gerber Toilet Flapper
Score: 75/100Rankings

The Lceyco 3-Inch Toilet Flapper Replacement Pack is a rubber flapper kit designed as a direct replacement for Gerber 99-788 toilets with 3-inch flush valves. It features an easy tool-free installation process and a water-efficient design intended to ensure complete flushes while reducing water waste. The product is available in various pack sizes to accommodate single repairs or multi-bathroom household needs.

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 | ![]() | ![]() |
|---|---|---|
3.625 inchesbest | 3 inches | |
2 count | 4 countbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Material & Durability(2) | ||
Seal Type | Water Resistant | Standard |
Hard Water Resistance | true | false |
Design & Features(1) | ||
Chain Material | Stainless Steel | Unknown |
Packaging & Support(2) | ||
Pack Quantity (count) | 2 count | 4 count |
Certifications | US/Canada Plumbing Codes | US/Canada Standards |
Compatibility & Fit(4) | ||
Flush Valve Compatibility | 3 Inch | 3 inch |
Flapper Diameter (inches) | 3.625 inches | 3 inches |
Toilet Type Compatibility | Gerber 99-788 / HET | Gerber 99-788 |
GPF Compatibility | 1.28 | 1.28-1.6 |

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“perfect fit”

“Quick fix for running/leaking toilets”




Installation videos from DIY experts highlight the product's compatibility and simplicity. Experts emphasize the importance of measuring the 3-inch ball for correct sizing and tuning the chain for leak-free seals.
Everyday users report the product as a quick and effective fix for running or leaking toilets, describing it as a perfect fit for compatible Gerber models. The installation is frequently praised for its ease, often taking under five minutes.