Plumb Shop Div Brasscraft 818-416 3 Inch Toilet Flapper

Product Description

The PLUMB SHOP DIV BRASSCRAFT 818-416 is a 3-inch rubber toilet flapper designed as a direct replacement for Kohler brand toilets. The flapper seals the flush valve seat to control water release from the tank into the bowl during each flush cycle. This part is installed by licensed plumbers, service technicians, or experienced DIYers during routine toilet repair or water-conservation upgrades. The kit includes a foam insert, a metal chain, and a hook, giving the installer all the components needed to complete the swap without sourcing additional hardware.

This flapper is sized for 3-inch flush valve openings, which are common in higher-flow Kohler toilet models. It is suited for residential bathroom applications and is sold in individual units. The rubber construction provides a durable, watertight seal, and the included foam insert allows fine-tuning of the flush volume where the valve design supports it. Plumbers performing warranty repairs or callback visits on Kohler toilets will find this a straightforward stock item.

Key Features

• 3-inch rubber flapper sized for Kohler flush valve openings
• Includes foam insert for adjustable flush volume control
• Metal chain and hook included for complete installation
• Rubber construction for a durable, watertight valve seat seal
• Sold individually, carded for retail or service truck stocking

Compatibility

Designed as a replacement flapper for Kohler brand toilets equipped with 3-inch flush valve openings. Confirm flush valve seat diameter before installation.

Installation Notes

Shut off the toilet supply valve and flush the tank to drain it before beginning removal of the old flapper. Disconnect the existing chain from the flush lever, unclip the old flapper from the overflow tube ears, and install the new 818-416 by seating the flapper ears onto the overflow tube pegs and reconnecting the chain with adequate slack. Adjust chain length so approximately one half inch of slack remains to prevent premature seal lift or a held-open valve. Follow applicable IPC guidelines for toilet repair in jurisdictions that require permitted plumbing work.