
Kohler GP85160
Score: 85/100
Hibbent Toilet Flapper
Score: 80/100Rankings

The Kohler GP85160 is a genuine 2-inch blue toilet flapper featuring an integrated adjustable float, designed specifically for 1.6 GPF two-piece Kohler toilets. It offers a tight seal to prevent leaks and includes durable, chlorine-resistant vinyl construction for long-lasting performance. The product comes with a 5-year warranty and is intended as a direct replacement for failing flappers in compatible models.

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.
| 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(3) | ||
Material | Plastic/Vinyl | Rubber |
Hard Water Resistance | null | true |
Water Resistance | null | true |
Design & Features(3) | ||
Chain Material | null | Stainless Steel |
Installation Type | Direct replacement | No-Tool |
Flapper Type | Flapper with Float | Flapper |
Packaging & Support(2) | ||
Pack Quantity (count) | 1 count | 2 count |
Certifications | None | US and Canada Plumbing Code Standards |
Compatibility & Fit(3) | ||
Flapper Diameter (inches) | 2 inches | 3.0 inches |
Toilet Type Compatibility | Two-piece | Gerber 99-788 |
Flush Valve Size | 2 | 3 inches |


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

Retailers and product pages from major home improvement stores describe the Kohler GP85160 as a reliable and efficient solution for toilet maintenance. Reviewers highlight its high-quality materials and precise water level control capabilities, noting it as an ideal choice for homeowners seeking hassle-free performance.
Everyday users generally praise the product for its ease of installation and effectiveness in preventing leaks. Common themes include satisfaction with the adjustable float feature for customizing water levels and the durability of the vinyl material.

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.

