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The 8 Best fill valve for toto toilets of 2025

Are you trying to find fill valve for toto toilets among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling fill valve for toto toilets on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 30 hours of research and did 47 fill valve for toto toilets tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best fill valve for toto toilets you can buy today

SaleNo. 1
TOTO TSU99A.XR Fill Valve, Blue
  • Adjustable for all TOTO toilet tanks
  • Resets your tank back to optimal performance
  • Includes valve, refill tube and clamp, cone washer and nut
  • Standard 7/8 inch inlet connection
SaleNo. 2
Toto TSU99A.X UNIVERSAL FILL VALVE ASSEMBLY, Unfinish
  • Adjustable height for all TOTO toilet tanks
  • Resets your tank back to optimal performance
  • Includes valve, refill tube and clamp, cone washer and nut
  • Standard 7/8 inch inlet connection
  • Easy, DIY installation
No. 3
Korky 528T Replacement TOTO Toilet Fill Valve - Fits G-Max and Power Gravity Toilets -Easy to Install -Made in USA
  • TOTO FILL FALVE: Designed to replace G-Max & Power Gravity Toilets. Designed to fix no/slow refilling, running, & noisy toilets, the fill valve is quieter than other fill valves. Adjustable sizing.
  • EASY TO INSTALL: Simply remove your old fill valve or ballcock, insert your new Korky fill valve, & adjust. The innovative twist-lock adjustment makes installation easy. Adjusts from 7-3/4" to 13-1/2".
  • INCLUDES: The universal fill valve set includes fill valve, refill tube, metal refill tube clip, mounting nut, cone washer, coupling nut, tamper proof key and instructions.
  • WHY KORKY: Our high quality toilet products are universal & specific to both older & modern toilet models. Our repair parts are easy to install & made exclusively from long lasting chlorazone red rubber.
  • REPLACEMENT TOILET PARTS: Try Korky Toilet Repair because we continue to commit to designing toilet repair parts that are unviersal to fit the majority of toilets. Designed & manufactured in Wisconsin.
SaleNo. 4
TOTO COMBO KIT -TOTO (1) THU500S Universal Flapper (Replaces THU499S), TOTO (1) TSU99A.X Universal Fill Valve
  • Universal toilet flapper
  • TOTO repair part
  • Genuine TOTO part
  • Adjustable height
  • Adjustable flow rate
No. 5
TOTO TSU99A.X Universal Fill Valve (2 PACK)
  • Genuine TOTO TSU99A.X Universal Fill Valve - 2 PACK
  • Adjustable height
  • Adjustable flow rate, For two piece toilets
  • Styles: TOTO''s design continuum features unique traditional, transitional and contemporary styles
SaleNo. 6
Korky 528MP QuietFILL Platinum Fill Valve-Fits Most Toilets-Easy to Install-Made in USA, Universal 99%, Black
  • UNIVERSAL FILL VALVE: This toilet fill valve replaces ballcocks & worn down valves for different types of 2-piece & 1-piece toilets. It's easy to install & keeps your toilet running smoothly.
  • EASY TO INSTALL: Quiet replacement fill valve has a twist-lock adjustment that makes installation the easiest when you're doing toilet repairs. Adjustable from 7.75'' to 13.5.''
  • INCLUDES: Installs in less than 5 minutes. Includes fill valve, refill tube, metal refill tube clip, mounting nut, cone washer, refill adjuster, coupling nut, tamper proof key & instructions.
  • WHY KORKY: Our high quality toilet products are universal & specific to both older & modern toilet models. Our repair parts are easy to install & made exclusively from long lasting chlorazone red rubber.
  • REPLACEMENT TOILET PARTS: Try Korky Toilet Repair because we continue to commit to designing toilet repair parts that are unviersal to fit the majority of toilets. Designed & manufactured in Wisconsin.
No. 7
Genuine TOTO USA Made Korky 528GT Blue Universal Toilet Fill Valve Replacement Assembly Kit Parts,Replace TSU99A.X and All other TOTO Toilets (1)
  • Korky 582GT Genuine Toto Universal Toilet Fill Valve
  • Replacement Toilet Fill Valve Kit Parts Compatible with TOTO TSU99A.X and all other TOTO Fill Valve
  • The fill valve height adjusts from 8-1/2 inch to 14 inch
  • Includes fill valve and hardware, 5 year warranty
  • Replaces & fixes all TOTO Fill Valves, Fill valve adjusts from 8-1/2" to 14",Specific fit for TOTO
  • Also replace TOTO #TSU18A,TSU36A,TSU09A,TSU36A,TSU17A,TSU30A,TSU31A,TSU13A and More
No. 8
Toto THU302 Replacement Cap for Dual Max Fill Valve for Toilet, 1 Count (Pack of 1)
177 Consomer Reviews
Toto THU302 Replacement Cap for Dual Max Fill Valve for Toilet, 1 Count (Pack of 1)
  • Use this part for the installation or repair of your Toto brand
  • Replacement cap
  • For Dual Max Fill Valve
No. 9
Toto REPLACEMENT VALVE CAP ASSY THU123
  • Genuine Toto parts
  • For all models with the black float chamber
  • Made in Japan
No. 10
Toto THU134 FILL VALVE ASSEMBLY IN-WALL TANK , Blue
  • For use with WT151M or WT152M in wall tank system
No. 11
Lychee Light Replacement Fill Valve Assembly for Toilet Tanks - Flushing Valve Part for Toilet Tanks Repair Parts, With quick install connector and refill pipe, Compatible with TOTO.
27 Consomer Reviews
Lychee Light Replacement Fill Valve Assembly for Toilet Tanks - Flushing Valve Part for Toilet Tanks Repair Parts, With quick install connector and refill pipe, Compatible with TOTO.
  • Quick installation: Lychee Light Toilet Fill Valve Assembly can be installed quickly. You don't have to worry about complicated tools or difficult installation.
  • Durable materials: This fill valve assembly is made of sturdy and durable materials that can withstand years of use, providing reliable performance.
  • Adjustable height: The float's height of this valve can be adjusted to meet the needs of different types of toilets. It can also customize the filling height of your toilet tank according to your needs.
  • Backflow prevention design: With a built-in backflow preventer, it can effectively prevent sewage backflow, blockage, and leakage, ensuring safe use.
  • Strong compatibility: This fill valve assembly is compatible with a wide variety of toilet brands, meeting the needs of a wide range of customers.
  • The toilet fill valve enjoys a one-year warranty, and any problems within one year can be unconditionally replaced free of charge.
No. 12
Korky 528GT Universal Fill Valve for Toto Toilets-2Pack
  • Higher refill ratio for optimum performance in TOTO toilets
  • Easy to install & adjust...No tools required!
  • Adjustable height
  • designed to replace all TOTO Fill Valves
  • Innovative twist-lock adjustment makes installation easy
No. 14
Toto TSU09A.8R Fill Valve Assembly for Toilet
  • Use this part for the installation or repair of your Toto brand toilet
  • For dual flush toilet
  • Reliability translates into reduced maintenance costs and superior performance
No. 15
Korky Store LAVELLE-528GT
541 Consomer Reviews
Korky Store LAVELLE-528GT
  • Fill valve adjusts from 7-3/4" to 13-1/2"
  • Easy installation and easy handling
  • Universal Toilet Fill Valve
SaleNo. 16
Korky 528 Toilet Fill Valve, Universal, Black(Packaging May Vary)
  • UNIVERSAL FILL VALVE: This toilet fill valve replaces ballcocks & worn down valves for different types of 2-piece & 1-piece toilets. It's easy to install & keeps your toilet running smoothly.
  • EASY TO INSTALL: Quiet replacement fill valve has a twist-lock adjustment that makes installation the easiest when you're doing toilet repairs. Adjustable from 7.75'' to 13.5.''
  • INCLUDES: Installs in less than 5 minutes. Includes fill valve, refill tube, metal refill tube clip, mounting nut, cone washer, coupling nut, tamper proof key & instructions.
  • WHY KORKY: Our high quality toilet products are universal & specific to both older & modern toilet models. Our repair parts are easy to install & made exclusively from long lasting chlorazone red rubber.
  • REPLACEMENT TOILET PARTS: Try Korky Toilet Repair because we continue to commit to designing toilet repair parts that are unviersal to fit the majority of toilets. Designed & manufactured in Wisconsin.
No. 17
Toto TSU18A Fill Valve Assembly for Toilet
  • Replaces TSU08A.11
  • Reliability translates into reduced maintenance costs and superior performance
  • For 1 Piece G-MAX
No. 18
NuFlush Replacement Fill Valve for Toto TSU53A, Universal Fill Valve with Detachable Filter
  • NuFlush Replacement Fill Valve for Toto TSU53A Fill Valve with Detachable Filter for Easy Cleaning
  • Includes Universal Bottom Fed Fill Valve, refill tube and clip, mounting nut, cone washer and coupling nut.
  • Bottom thread is 7/8 inch
  • Quiet and fast fill valve with durable High Impact ABS Stem
No. 19
Korky QuietFill Fill Valve Replacement Cap 528 R528
  • FILL VALVE CAP: The Korky Toilet Fill Valve Replacement Cap fits Korky QuietFILL, Platinum and TOTO Fill Valves
  • TOILET FILL VALVE REPLACEMENT: The replacement cap features a durable plastic construction with a premium, long lasting rubber diaphragm. Easy to install, the R528 includes one assembly cap.
  • LONG LASTING CHLORAZONE red rubber resists chlorine, city water treatment, hard & well water. This toilet part replacement includes the universal adjustable flapper & stainless steel chain.
  • WHY KORKY: Our high quality toilet products are universal & specific to both older & modern toilet models. Our repair parts are easy to install & made exclusively from long lasting chlorazone red rubber.
  • REPLACEMENT TOILET PARTS: Try Korky Toilet Repair because we continue to commit to designing toilet repair parts that are universal to fit the majority of toilets. Designed & manufactured in Wisconsin.
  • Replacement cap for Korky 528 QuietFill Fill Valve
  • Premium red Chlorazone rubber resists chlorine
  • Also fits Hunter 528 and TOTO fill valves
SaleNo. 20
Korky Toilet Repair R528P2 Fill Valve Replacement Cap, Black, Pack of 2
  • FILL VALVE CAP: The Korky Toilet Fill Valve Replacement Cap fits Korky QuietFILL, Platinum and TOTO Fill Valves
  • TOILET FILL VALVE REPLACEMENT: The replacement cap features a durable plastic construction with a premium, long lasting rubber diaphragm. Easy to install
  • WHY KORKY: Our high quality toilet products are universal & specific to both older & modern toilet models. Our repair parts are easy to install & made in the USA
  • Included components: (1) Assembly Caps

How to choose a good fill valve for toto toilets

Does the idea of finding a fantastic fill valve for toto toilets make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in fill valve for toto toilets. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top fill valve for toto toilets products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top fill valve for toto toilets on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top fill valve for toto toilets brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top fill valve for toto toilets based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the fill valve for toto toilets were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good fill valve for toto toilets, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your fill valve for toto toilets.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting fill valve for toto toilets for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our fill valve for toto toilets. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what fill valve for toto toilets should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on fill valve for toto toilets.