TOTO THU338N Flush Valve Assembly for One-Piece Dual Flush Toilet

Overview

The TOTO THU338N flush valve assembly is designed for one-piece dual-flush toilets, delivering reliable control over each flush cycle while replacing worn or leaking components. Built to fit standard fittings, this part supports smooth operation and ongoing bathroom performance without requiring a full toilet replacement.

In busy households, a dependable flush valve can simplify maintenance routines and help keep bathrooms functional with minimal downtime. The THU338N blends practical design with everyday usability, making it a solid choice for upgrading or restoring a dual-flush system in compatible one-piece models.

Key benefits

• Precise dual-flush control for consistent performance across uses
• Durable construction intended for long-term reliability in a daily bathroom environment
• Quiet operation with a smooth water release and reliable seal
• Easy replacement with standard fittings and accessible installation steps
• Designed to support efficient, controlled flushing as part of a dual-flush system
• Compatible with many common one-piece dual-flush configurations

What to expect during installation

• Simple replacement process that minimizes downtime when upgrading an older valve
• Clear alignment with standard inlet connections and tank interfaces
• Seals and connections designed to reduce the chance of leaks when properly installed
• Guidance to verify compatibility with your specific toilet model before purchasing

Note: This valve assembly is a replacement part meant to restore or improve performance in compatible one-piece dual-flush toilets. For best results, confirm model compatibility, follow installation instructions, and test the system after replacement. If you have any doubts, consult a professional plumber.