TOTO Adjustable Replacement Fill Valve Assembly for Toilet Tanks

Restore your toilet's flushing performance with the TOTO Adjustable Replacement Fill Valve Assembly (TSU99A.XR). Designed for compatibility with most current TOTO toilet models, this genuine OEM replacement fill valve features an adjustable height and refill setting, allowing you to fine-tune your tank for reliable, efficient operation.

Product Details

• Genuine TOTO replacement fill valve
• Compatible with most current TOTO toilet models
• Adjustable height and refill volume
• Restores proper tank filling performance
• Helps eliminate noisy or inconsistent filling
• Standard 7/8" threaded inlet connection
• Includes refill tube, refill tube clamp, cone washer, and mounting nut
• Easy installation
• OEM replacement part

To learn more about this TOTO fill valve, read our article How to Easily Find the Toilet Model Number and our Step-by-Step Guide to Replace a Fill Valve!

Additional Details

• Brand: TOTO
• MPN: TSU99A.XR
• Thread Type: NPT
• Connector Type: Threaded

Since 1917, TOTO has been a global leader in bathroom innovation, known for superior quality, comfort, and design. Every toilet part is crafted to deliver lasting performance and a refined quality you'll appreciate every day.

TOTO Adjustable Replacement Fill Valve Assembly FAQ

Is the TOTO TSU99A.XR compatible with my toilet?

The TSU99A.XR is designed to fit virtually all current TOTO toilet models, making it an excellent universal replacement fill valve for TOTO tanks. If you're unsure about compatibility with your specific model, check your toilet model number or contact our customer service team before ordering.

Does Toto Adjustable Replacement Fill Valve come with everything needed for installation?

Yes, the assembly includes the key components needed for a standard replacement installation: the fill valve, refill tube, clamp, cone washer, and nut.

It's recommended to replace the existing supply line during installation as well, even if the current line appears to be in good condition. The compatible replacement is the 3/8" x 12" Stainless Closet Supply Line.

When should I replace my toilet fill valve?

You should replace the fill valve if you notice constant running water, slow or inconsistent tank filling, noisy operation, or if adjustments no longer resolve performance issues. In most cases, replacement is more reliable and cost-effective than attempting repairs.

How do I choose the right universal fill valve for my toilet?

Look for a fill valve that is compatible with your toilet brand and tank type, with adjustable height and refill settings. Universal-style fill valves are designed to fit most standard toilet tanks, but it’s still important to confirm tank space, connection size, and manufacturer recommendations before purchasing. 

Can the height and water level be adjusted on the Adjustable Replacement Fill Valve Assembly?

Yes, TOTO's assembly kit allows for both height and water level adjustments. This makes it easy to set the correct fill volume for your specific toilet tank to ensure proper flushing performance.