Why Toto Flush Valve Cap Is Necessary?
There are many reasons why a toilet needs a flush valve cap. The most important reason is that it helps to prevent sewer gas from escaping into the home. Sewer gas can be very dangerous and can cause serious health problems. It is also important to have a flush valve cap because it helps to keep the bowl clean and free of debris.
Our Top Picks For Best Toto Flush Valve Cap
Best Toto Flush Valve Cap Guidance
Toto Replacement Valve Cap Assy THU123

When your Toto toilet starts running constantly, it’s time to replace the valve cap assy. Don’t be fooled by imitations, this is the genuine Toto part, made in Japan. This part is essential to the proper function of your Toto toilet. If your toilet is constantly running, or if the water level in the bowl is too high, it’s time to replace the valve cap assy.
Common Questions on Toto Replacement Valve Cap Assy THU123
Why We Like This
1) Genuine Toto parts for all models with the black float chamber
2) Made in Japan
3) Durable and long lasting
4) Easy to install
5) Perfect replacement for your old or damaged valve cap
Additional Product Information
Height | 3 Inches |
Length | 3 Inches |
Weight | 0.01984160358 Pounds |
Korky QuietFill Fill Valve Replacement Cap 528 R528

The Korky QuietFill Fill Valve Replacement Cap is designed to fit Korky QuietFILL, Platinum and TOTO Fill Valves. This replacement cap features a durable plastic construction with a premium, long lasting rubber diaphragm. The R528 includes one assembly cap. The universal adjustable flapper and stainless steel chain are easy to install. The high quality toilet products are universal and specific to both older and modern toilet models. Our repair parts are easy to install and made exclusively from long lasting chlorazone red rubber.
Common Questions on Korky QuietFill Fill Valve Replacement Cap 528 R528
Why We Like This
• Durable Plastic Construction• Premium, Long Lasting Rubber Diaphragm• Includes One Assembly Cap• Resists Chlorine, City Water Treatment, Hard & Well Water• Universal Adjustable Flapper & Stainless Steel Chain
Additional Product Information
Color | Black |
Height | 11.5 Inches |
Length | 2 Inches |
Weight | 0.1 Pounds |
Korky Toilet Repair R528P2 Fill Valve Replacement Cap, Black, Pack of 2

We all know the feeling of a running toilet – the constant sound of water dripping into the bowl, and the ever-growing water bill. But what many people don’t know is that a running toilet is often caused by a faulty fill valve. The fill valve is responsible for filling the toilet tank with water after it has been flushed. A defective fill valve can cause the tank to overfill, leading to a running toilet. Luckily, the Korky Toilet Fill Valve Replacement Cap can help solve this problem.
The Korky Toilet Fill Valve Replacement Cap fits Korky QuietFILL, Platinum and TOTO Fill Valves. It features a durable plastic construction with a premium, long lasting rubber diaphragm. This replacement cap is easy to install, and it can help save you money on your water bill. So if you’re tired of a running toilet, pick up a Korky Toilet Fill Valve Replacement Cap and get your toilet back to working order.
Common Questions on Korky Toilet Repair R528P2 Fill Valve Replacement Cap, Black, Pack of 2
Why We Like This
Additional Product Information
Color | Black |
Height | 1.11 Inches |
Length | 1.7828 Inches |
Toto TSU99A.X UNIVERSAL FILL VALVE ASSEMBLY

The Toto TSU99A.X Universal Fill Valve Assembly is the perfect way to ensure your TOTO toilet is performing at its best. The adjustable height feature allows it to be installed on all TOTO toilet tanks, and the included valve, refill tube and clamp, cone washer and nut make it easy to install with no repetitive words.
Common Questions on Toto TSU99A.X UNIVERSAL FILL VALVE ASSEMBLY
• What are the dimensions of the TSU99A.X valve?The valve has a height of 9-1/2 inches, a width of 2-1/4 inches, and a length of 3 inches.
• What is the maximum flow rate of the TSU99A.X valve?
The valve has a maximum flow rate of 3.5 gallons per minute.
• What is the minimum operating pressure for the TSU99A.X valve?
The valve has a minimum operating pressure of 10 pounds per square inch.
• What is the maximum operating pressure for the TSU99A.X valve?
The valve has a maximum operating pressure of 125 pounds per square inch.
• What is the warranty period for the TSU99A.X valve?
The valve has a one-year limited warranty.
Why We Like This
Additional Product Information
Color | Unfinish |
Height | 2.25 Inches |
Length | 10.25 Inches |
Weight | 0.33 Pounds |
Korky 528T Replacement TOTO Toilet Fill Valve – Fits G-Max and Power Gravity Toilets -Easy to Install -Made in USA

Common Questions on Korky 528T Replacement TOTO Toilet Fill Valve – Fits G-Max and Power Gravity Toilets -Easy to Install -Made in USA
Why We Like This
• Fixes no/slow refilling, running, & noisy toilets• Adjustable sizing• Easy to install• Includes fill valve, refill tube, metal refill tube clip, mounting nut, cone washer, coupling nut, tamper proof key and instructions• Made in USA
Additional Product Information
Color | Black |
Height | 4 Inches |
Length | 2.38 Inches |
Weight | 0.7 Pounds |
Buying Guide for Best Toto Flush Valve Cap
A flush valve cap is a screw-on or push-on cap that covers the flush valve, which is the moving part of a toilet that releases water from the tank to clean the bowl. The purpose of the flush valve cap is to keep dirt and debris out of the valve, and to prevent small objects from being flushed down the toilet and clogging the drain. There are many different types of flush valve caps on the market, so it is important to choose one that will fit your toilet correctly and help to keep it functioning properly.
When selecting a flush valve cap, you should consider its size, material, and design. The size of the cap must be large enough to cover the entire flush valve opening, and it should have a snug fit so that it does not come off easily. The material should be durable and able to withstand repeated use. Some caps are made of plastic, while others are made of metal or rubber. The design of the cap may be plain or ornate, depending on your personal preference.
Conclusion
If you’re looking for a top-of-the-line flush valve cap, look no further than the best toto flush valve cap on the market. This product is designed for superior performance and will provide you with years of reliable use. It’s easy to install and backed by a solid warranty, so you can be sure that your investment is protected. Whether you’re looking for a replacement cap or simply want to upgrade your current one, the best toto flush valve cap is the way to go.
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