TOTO THU500S Replacement Flapper – 2 Pack for 3-Inch Flush Valve Tanks

Overview

The TOTO THU500S replacement flapper is a practical, blue-toned plastic part designed for select 3-inch flush valve tanks. This 2-pack delivers great value for quick maintenance and ongoing performance in your toilet system, aligning with TOTO's long-standing focus on quality, durability, and thoughtful design. The lightweight, blue-accented unit fits seamlessly into routine repairs and carries the brand’s reputation for built-to-last reliability—often described in product materials as Power Gravity in Blue.

What’s included

• Two THU500S replacement flappers in every pack
• Compatibility with a range of 3-inch Toto flush valves

Compatibility and replacements

• Replaces multiple Toto flapper models: THU138S, THU175S, THU331S, THU140S, THU299S, THU253S, THU277S, THU347S, THU275S, THU332S, THU369S, THU499S
• Designed for use on Toto 3-inch flush valve tanks

Design and materials

• 3-inch sealing surface for a reliable seal
• Plastic construction for durability and easy maintenance
• Blue variant for quick identification during repairs

Performance and value

In line with Toto’s emphasis on performance, quality, and longevity, this flapper set supports dependable flush operation and straightforward maintenance. The 2-pack format offers value by providing ready replacements for common tank configurations, potentially helping reduce downtime and maintenance costs over time. The design reflects a commitment to accurate fit, smooth operation, and reduced guesswork during repairs.

Brand history and philosophy come through in practical details—from precise engineering to global manufacturing. While individual results may vary, customers often appreciate parts that align with a history of durability, thoughtful design, and attention to detail. This replacement flapper stands as a straightforward, compatible option for keeping select Toto 3-inch flush valve tanks functioning with steady performance.