Kohler GP1078441
Score: 85/100
Essential Values Toto Flapper
Score: 80/100Rankings
The Kohler GP1078441 is a genuine OEM replacement flapper designed specifically for Kohler two-piece toilets featuring Class Five flushing technology. Its key strength is the precise 3.25-inch rubber seal that effectively prevents phantom flushes and maintains high-efficiency performance. However, it is incompatible with non-Kohler models and may degrade faster in hard water environments.
The Essential Values PACK Toto Toilet Flapper Replacement is a 4-pack of 3-inch aftermarket rubber flapper valves designed as universal replacements for TOTO toilets. It features high-quality flexible rubber for a tight seal and includes a stainless steel chain and clip hook for easy installation. The product offers broad compatibility with most 3-inch TOTO tank models, providing an affordable alternative to OEM parts.
| Attribute | | |
|---|---|---|
3.25 inchesbest | 3 inches | |
1 count | 4 countbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Material & Durability(2) | ||
Material | Rubber | Flexible Rubber |
Seal Type | Rubber | Standard |
Design & Features(3) | ||
Chain Material | Standard | Stainless Steel |
Chain Adjustability | false | true |
Installation Type | Direct Replacement | Tool-free |
Packaging & Support(2) | ||
Pack Quantity (count) | 1 count | 4 count |
Warranty Period | 1 Year Limited | None |
Compatibility & Fit(5) | ||
Flush Valve Compatibility | Kohler Class Five | 3 inch |
Flapper Diameter (inches) | 3.25 inches | 3 inches |
Toilet Type Compatibility | Two-Piece | TOTO G-Max |
GPF Compatibility | 1.28 | Standard |
Flush Valve Size | 3.25 inch | 3 inch |
Products in the top-left offer the best value (high score, low price).
Plumbing experts and editors from sites like Ferguson and CPE Supply highly recommend this part as the definitive OEM replacement for Class Five systems. They highlight its precise 3.25-inch seal as critical for preventing phantom flushes and its durable rubber construction for resisting corrosion.
Everyday consumers generally report high satisfaction, with many noting that the flapper perfectly fits their Kohler models and restores the toilet to like-new flushing performance. Common praise includes the ease of installation and the elimination of running toilet noises.
“Perfect fit for my Kohler Cimarron-flush like new!”
“No more running toilet; lasted 2 years in hard water”
“Installed in 2 minutes, chain included.”
No professional reviews, editor tests, or ratings from sources like Wirecutter, Consumer Reports, or plumbing experts appear in the available data. Product pages emphasize compatibility and material durability but lack independent verification.
No consumer reviews, praise, or complaints are present in the search results. Common themes cannot be identified due to the complete absence of feedback data from everyday users.
