Korky QuietFill Toilet Fill Valve-528CM - The Home Depot


Model # 528CM

Internet # 100023407

Store SKU # 414944

QuietFill Toilet Fill Valve

Korky QuietFill Toilet Fill Valve

This item has been discontinued.
The Home Depot no longer carries this specific product.

$8.87 / each
  • "Eliminated need for the old ball and lever valve" (review)
  • "Adjustable height is a great feature" (review)
  • Customers find sound reduction is noticeable


Model # 528CM

Internet # 100023407

Store SKU # 414944

Designed to fix no/slow refilling, running, and noisy toilets, the Korky QuietFILL Toilet Fill Valve is more than two times quieter than other fill valves. It has a universal design to fit all brands and features a wide range of adjustability to fit most 2-piece and 1-piece toilets. The QuietFill Fill Valve is very easy to install and adjust; no tools are required. Simply remove your old fill valve or ballcock, insert your new Korky fill valve, and adjust. The innovative twist-lock adjustment makes installation easy. Designed to fit more toilets, the QuietFill toilet fill valve adjusts from 7-3/4 inch to 13-1/2 inch.

  • Fixes: running, noisy, no/slow refill and no/weak flush toilets
  • Proven quietest in lab testing
  • Strainer catches sentiment in the water and allows valve to be serviceable
  • Height easily adjusts from 7-3/4 in. to 13-1/2 in.
  • Fits short and extra tall tanks
  • Innovative twist-lock adjustment for easy installation
  • Enclosed float does not hang-up on toilet tank walls
  • Code-approved anti-siphon design
  • Replaces old technologies such as ballcocks
  • Easy to install and adjust
  • 5-Year Warranty
  • Made in USA
  • Included in Kit: (1) Fill Valve, (1) Refill Tube, (1) Metal Refill Tube Clip, (1) Mounting Nut, (1) Cone Washer, (1) Coupling Nut, (1) and (1) Instructions

Info & Guides

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Assembled Depth (in.)  2 in  Assembled Height (in.)  10 in 
Assembled Width (in.)  4 in 
Adjustable Fit  Yes  Dual Flush  No 
Hardware Included  Yes  Includes Flapper  No 
Material  Plastic  Plumbing Part Type  Toilet Fill Valve 
Returnable  90-Day  Valve Type  Fill 
Warranty / Certifications
Manufacturer Warranty  5 year warranty 


Rated 4.2 out of 5 by 87 reviewers.
Rated 5.0 out of 5.0 by Problem Free Refilling I've used the competing Fluid Master fill vale for decades and had recurring problems with proper adjustment of the length of the chain to the flush lever. Too often the Fluid Master float fails to fall during the flush and the tank never refills with water. I've frequently tried to improve the adjustment, but failures continued to occur. I installed my first Korky Fill Valve about one year ago and it worked flawlessly from the start. I just installed the Korky Fill Valve in my second bathroom. The instructions are clear. It was easy and took less than one hour to install (and I move slowly). It has a quieter fill than the Fluid Master. I suggest you check how the water connection is made between the base of the fill valve and your water source. The Korky protrudes a bit further than the old fill valve and it required that I purchase a flexible connecting hose to accommodate the change in length. July 1, 2014
Rated 5.0 out of 5.0 by Much Better than my Old Valve. The product came with easy to follow directions and was really easy to install. I was having so many problems with my last valve. Had to constantly adjust the ball to make the water stop running. The QTFV eliminated the need for the old ball and lever valve. Once installed it actually filled the tank and stopped the water at the right level one the first flush without any leaks. It is such a relief to have a quiet toilet after listening to it run for weeks. May 15, 2014
Rated 5.0 out of 5.0 by Great product! This Korky flush valve is great! Super easy installation and works as advertised. Comes with a clear step by step installation guide and all the needed accessories. Takes no more than 20 minutes to install. After shutting off the water to the tank, you'll need a bucket and a sponge to remove access water from the tank after it's flushed and perhaps a big wrench or gloves to remove the old nut underneath the tank - the one that holds the old flush valve in place. After that follow the installation guide. The Korky valve isn't silent or super quiet. But it is quieter than the old one I had - which was similar to the basic cheaper valves. It has a better design and no moving external parts as everything is concealed in a one-piece housing. Looks clean and works well. Very happy with it. Definitely recommend it! October 29, 2014
Rated 5.0 out of 5.0 by much better technology than traditional fill valves I used this to replace the functioning, but extremely loud and slow fill valve I used to repair my toilet about 8 years ago. Set up was incredibly easy and everything can be done without tools except for trimming the fill hose where you'll need a pair of scissors. The fill valve is great to install, simply take out the old one, measure the height so the top of the valve matches up with the top of the fill tube, twist the valve to lock the height then tighten the valve into place and attach the supply. piece of cake. The valve is quiet, not silent, but you won't hear the toilet filling once you leave the bathroom. It's also very fast. Fills our 1.6g toilet in about 30 sec. Great upgrade and I will likely get one for the new toilet I'm installing in another bathroom. January 18, 2013
Rated 4.0 out of 5.0 by hmmmm I have adjusted this a couple of times after I had this set replace the guts inside my main toilet. I have messed with it, I have noticed it still running, so I have configured it a couple of ways and still I have noticed it running on a bit. Last night I reset everything (there is a twistable depth adjustment) and so far so good, I downgraded it to a 4 because it was so easy to put in, it shouldn't be that hard to adjust. If I have any other issues I will post. I will say, it literally took 5 minutes to put in, adjusting it has been the time consuming part, but you can adjust the water level in any number of ways, I have a low flush usage to begin with, and now it is even better!! November 2, 2014
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Store Exclusive. This item is available for purchase in select stores only.