Korky 528T TOTO Fill Valve – Fits G-Max & Power Gravity – Easy Install – Made in USA – Black

Upgrade your Toto toilet with the Korky 528T replacement fill valve

The Fits TOTO Fill Valve is designed to replace G-Max and Power Gravity toilets, addressing common tank issues such as slow refills, running toilets, and noisy cycles. In many setups, it operates more quietly than traditional fill valves while restoring steady refill behavior for a calmer bathroom routine.

Installation is simple and tool-free thanks to a practical twist-lock adjustment. The valve height ranges from 7-3/4 inches to 13-1/2 inches, allowing a versatile fit across a broad set of Toto models. This makes it a convenient choice for homes with mixed toilet styles or older fixtures that require a reliable upgrade.

Key benefits you may notice

• Quieter refill cycles compared to older valve designs, creating a more peaceful bathroom environment.
• More consistent refill timing that helps restore normal flush performance.
• Simple, tool-free installation with clear, user-friendly instructions.

What’s included

• 1 x 528GT fill valve
• 1 x refill tube
• 1 x metal refill tube clip
• 1 x mounting nut
• 1 x cone washer
• 1 x coupling nut
• 1 x tamper-proof key
• 1 x instruction sheet

Why choose Korky

Designed and manufactured in the USA, Korky parts emphasize universal compatibility and durable construction. The valve body uses chlorazone red rubber for long-lasting resilience. This fill valve is intended to work with a wide range of Toto toilets, including older G-Max and Power Gravity models, while maintaining a simple replacement process for ongoing maintenance.