
Kohler GP1078440
Score: 80/100
American Standard Universal Flapper
Score: 72/100Rankings

The Kohler GP1078440 is a genuine 2-inch shark-fin style toilet flapper designed as a replacement part for select Kohler one-piece toilets. It features a corrosion-resistant rubber construction with a red finish and includes an adjustable chain for secure sealing and efficient flushing. This part is specifically engineered for bottom outlet flush valves to ensure a reliable fit.

The American Standard 7381129-200.0070A is a universal replacement flapper assembly designed specifically for 2-inch American Standard flush valves. It provides a comprehensive repair solution by including the flapper, chain, hook, float, and clips in a single package. However, the lack of consumer reviews and detailed material specifications makes it difficult to fully assess its long-term reliability compared to competitors.
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2 inchesbest | 2 inchesbest | |
1 countbest | 1 countbest |
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| Attribute | ![]() | ![]() |
|---|---|---|
Material & Durability(2) | ||
Material | Rubber | Not Specified |
Seal Type | Shark-fin | Standard |
Design & Features(3) | ||
Chain Material | Not specified | Standard |
Installation Type | Direct replacement | Direct Replacement |
Flapper Type | Shark-fin | Universal Flapper with Float |
Packaging & Support(1) | ||
Warranty Period | null | 1 Year Limited |
Compatibility & Fit(5) | ||
Flush Valve Compatibility | Bottom outlet | 2-inch Flush Valves |
Universal Fit | false | true |
Toilet Type Compatibility | One-piece | Standard Two-Piece |
GPF Compatibility | null | Not Specified |
Flush Valve Size | 2 | 2 inch |

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

No professional reviews or expert assessments from product testing organizations or industry publications are available for this product.
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