Okala OEM Gerber 99-790 Fill Valve – Original Replacement for Maxwell SE Toilets

Reliable OEM Replacement for Gerber 99-790

Experience dependable toilet refilling with the Okala OEM Gerber 99-790 fill valve. This genuine replacement part is engineered for Maxwell SE tanks, offering a steady, predictable refill cycle and a straightforward retrofit that fits the way you use your toilet daily. The design emphasizes consistent operation, so you can feel confident in a smooth, quiet refill experience as part of your bathroom routine.

Designed to address common issues like leaks, noisy refills, and slow filling, this kit provides a complete, ready-to-install solution. The assembly includes every essential component you need to replace a worn valve, helping you restore performance without hunting for missing pieces. The result is a practical upgrade that supports reliable flushing and refilling in everyday use.

What’s Included

• Fill valve
• Refill tube
• Coupling nut
• Intake filter
• Cone washer
• Installation instructions

Key Benefits and Fit

• Genuine OEM replacement for accurate fit and performance with Gerber 99-790 units
• Backwards compatible with older revisions of the same part, with identical or improved reliability
• Meets or exceeds applicable US and Canadian plumbing standards for safe use
• Economical packaging helps reduce overall replacement costs
• Suitable for Gerber Maxwell SE dual-flush tanks, including 1.1 gpf and 1.6 gpf models 28-190 and 28-195

Compatibility and installation details: model information is typically printed inside the tank, confirming the Maxwell SE line. Component color and minor part revisions may vary slightly, but the kit remains backwards compatible with the same performance goals. The packaging is designed to be cost-conscious, with a plastic bag that keeps the contents protected while passing savings along to you.

Usage Notes

Use this OEM replacement as part of a routine bathroom maintenance plan. When installed correctly, the valve supports a steadier refill and helps restore the tank’s original refill rhythm. While results can vary by toilet condition and installation, many users find a straightforward retrofit with less guesswork and fewer parts to track down.