TOTO Replacement Flapper THU500S for 3-Inch Flush Valve Tanks | Compatible with Select TOTO Models

Overview

The TOTO Replacement Flapper THU500S is designed for select 3-inch flush valve tanks, delivering a dependable seal and a straightforward replacement experience. Crafted with a durable polypropylene body and a rubber sealing surface, this part aims to restore reliable flush performance while preserving the look and function of your toilet. The flapper is adjustable to fit a range of tank configurations, making it a versatile option for maintenance without a full valve swap. By upgrading to a dedicated replacement, you can approach daily use with renewed confidence in your toilet’s operation.

What it fits

This replacement part targets a subset of TOTO 3-inch flush valve tanks and replaces a list of older THU models. Its compatibility focuses on a common valve size while offering enough flexibility to accommodate different tank layouts. The inclusion of a chain and model-specific setup guidance helps streamline the setup process, so you can complete maintenance with minimal downtime.

• Compatible with a selection of TOTO 3-inch flush valve tanks
• Replaces multiple THU-series part numbers for easier maintenance
• Includes chain and setup instructions tailored to specific tank models

Key features and benefits

• Size is 3 inches with a dedicated sealing surface for a solid seal
• Durable materials include a polypropylene body and rubber sealing surface
• Adjustable compatibility supports various 3-inch tank configurations
• Complete installation package includes chain and model-specific setup guidance

Practical use cases

When a toilet exhibits slow or inconsistent flushing, or minor leaks around the flapper, replacing the worn part with THU500S can help restore a steadier flush cycle. The compact design, coupled with the included chain, reduces the need for additional hardware and simplifies maintenance for homes or light commercial settings.

Installation notes and care

Handle with care during replacement to avoid bending any linkage. While the part is designed for broad compatibility, always confirm fit with your specific TOTO tank model. After installation, flush a few times to verify a consistent seal and operation.