Kohler GP1078441 Class Five Flapper for Two-Piece Toilets

Kohler GP1078441 Class Five Flapper — Two-Piece Toilets

The Kohler GP1078441 is a genuine OEM replacement flapper engineered specifically for Kohler Class Five two-piece toilets. Kohler’s Class Five flush system delivers a powerful, high-performance flush that clears the bowl completely — but only when the flapper seals and lifts correctly. A worn or warped flapper leads to a constantly running toilet and diminished flush power. This direct OEM replacement restores the precise seal and lift the Class Five system demands.

Key Features

• Genuine Kohler OEM replacement — designed specifically for Class Five two-piece toilet flush systems
• Maintains the exact seal geometry and lift profile required for Class Five performance
• Stops running toilets caused by a degraded or leaking flapper
• Chlorine- and mineral-resistant rubber construction for long service life
• Direct drop-in fit — no cutting, trimming, or adapters required
• Restores full flush power and water efficiency to your two-piece toilet

Why Replace Your Flapper?

The flapper is the most commonly replaced toilet part — and for good reason. On Kohler Class Five two-piece models, a degraded flapper not only causes a running toilet but can also reduce flush effectiveness. The GP1078441 is the correct OEM flapper for two-piece Class Five toilets, ensuring the valve opens fully and seals completely with every flush. A simple swap can save thousands of gallons of water annually.

Compatibility

Designed for Kohler Class Five two-piece toilets. Always verify your toilet model number before ordering to confirm compatibility with the GP1078441 flapper.

Part Details

• Part Number: GP1078441
• Brand: Kohler
• Type: Flapper
• Series: Class Five
• Application: Two-Piece Toilets
• Weight: 0.4 lbs