421BP Fits American Standard Combo Seat Disc — Reliable, Durable, and Designed for Smooth Seal Performance
The 421BP Combo Seat Disc is designed to provide a dependable sealing replacement for select American Standard faucet and valve assemblies. Built for consistent performance, this disc helps restore smooth water flow control and proper shut‑off function by replacing worn or deteriorated internal components. Its durable construction supports long‑term use and helps reduce leaks, drips, and irregular water behavior caused by aging seat discs.
shaped to create a stable, secure seal, the 421BP is a practical choice for routine repair work, preventative maintenance, or full fixture rebuilds. Whether it's for home plumbing upkeep or service‑team repair stock, this disc offers a simple way to refresh system performance without replacing the entire faucet or valve assembly.
Key Features
Designed to replace worn combo seat discs in compatible American Standard assemblies
Helps restore smooth water control and reliable shut‑off performance
Durable construction supports long-lasting, everyday use
Reduces leaks, drips, and inconsistent water flow
Quick, straightforward installation suitable for DIY or professional repairs
Practical component for routine fixture maintenance or rebuilds
Specifications
Model: 421BP
Type: Replacement combo seat disc
Fitment: Compatible with select American Standard valve and faucet designs
Material: Durable sealing composite suitable for repeated water exposure
Function: Creates a watertight seal to improve overall valve performance
Applications
Residential Plumbing Repairs
Ideal for resolving drips, leaks, and poor water shut‑off in compatible American Standard fixtures.
Commercial & Office Buildings
Reliable part for restoring performance in frequently used restrooms and maintenance‑heavy areas.
Rental Properties
Cost‑effective repair component that reduces service calls and extends fixture life.
Plumbers & Maintenance Teams
A convenient stocking item for servicing select American Standard units quickly and efficiently.
There are currently no resources for this product.
BrandKorky
FinishRed
Hardware IncludedYes
101
AdjustableYes
Assembled Length3 in.
Assembled Product Dimensions (L x W x H)6.00 x 3.88 x 2.50 Inches
Assembled Product Weight0.17 lbs
Assembled Width3 in.
Compatible BrandsUniversal
CoverageArea100 Sq-ft
CoverageArea_UOMSq-ft
Handles IncludedYes
Length33-1/2 Ft
Length_UOMFt
MaterialCross Linked Polymer
Number in Package1
Product TypeFlapper
StandardsAstm D1970
Sub BrandTOTO
Suitable For Use With2 in Toilet Flush Valve, American Standard Actuator Units
TemperatureRating55 Deg F
TemperatureRating_UOMDeg F
Thickness45 Mil
Thickness_UOMMil
UPC725799500363
UsageFor Roofing, Patching, Gutter Repair, Flashing And General Waterproofing