TotoTHU123 – Replacement Diaphragm Cap for Fill Valve

The TOTO THU123 Replacement Diaphragm Cap is a genuine TOTO repair part designed to restore proper operation to compatible toilet fill valves. It replaces a worn or damaged diaphragm cap to help correct filling and shutoff issues without replacing the entire fill valve.

Features

• Genuine TOTO replacement part
• Replacement diaphragm cap for compatible TOTO fill valves
• Helps restore proper water flow and shutoff performance
• Ideal for repairing a leaking, slow-filling or continuously running toilet
• Durable construction for reliable performance
• Simple replacement helps extend the life of the existing fill valve
• Manufacturer Part Number: THU123