Fluidmaster Inc 523A-009-T4 Universal Toilet Flapper

Product Description

The FLUIDMASTER INC 523A-009-T4 is a universal toilet flapper designed to fit both 2-inch and 3-inch flush valves in a single unit. It replaces worn or leaking flappers that cause running toilets and wasted water. The flapper installs without specialty tools and is suited for a wide range of residential toilet models. Plumbers and maintenance technicians keep this part on hand because one SKU covers two of the most common flush valve sizes, reducing truck stock and callbacks. The 10-year warranty supports long-term installation confidence.

This flapper is used in residential plumbing applications where a toilet is running, leaking at the flush valve seat, or failing to hold a proper seal between flushes. It is a direct drop-in replacement for standard 2-inch and 3-inch flush valve openings found in most domestic toilets. The design eliminates the need to measure the existing flapper before installation, making it a reliable option for service calls where the flush valve size is unknown.

Key Features

• Fits both 2-inch and 3-inch flush valves in one universal flapper
• Replaces leaky or deteriorated flappers to stop running toilets
• No specialty tools required for installation
• 10-year warranty for long-term reliability
• Sold in a package of 4 units per order

Compatibility

Designed as an OEM-style replacement flapper compatible with most residential toilets that use standard 2-inch or 3-inch flush valves.

Installation Notes

Installation is performed by a licensed plumber or qualified maintenance technician. Shut off the water supply to the toilet at the stop valve and flush to empty the tank before removing the old flapper. Unhook the existing flapper from the overflow tube ears and disconnect the chain from the flush handle arm, then seat the new flapper and reconnect the chain with appropriate slack. Verify the flush valve seat is clean and free of mineral buildup before seating the new flapper to ensure a proper seal.

Technical Specifications

• Flush Valve Compatibility: 2 inches and 3 inches
• Package Quantity: 4 units per package
• Unit of Measure: EA
• Weight: 1.75 pounds
• Warranty: 10 years

Standard Information

• Brand: FLUIDMASTER INC
• Manufacturer Part Number: 523A-009-T4