Korky QuietFill Toilet Fill Valve-528CM - The Home Depot
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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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Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Adjustable Fit 
Dual Flush 
Hardware Included 
Includes Flapper 
Plumbing Part Type 
Toilet Fill Valve 
Valve Type 
Warranty / Certifications
Manufacturer Warranty 
5 year warranty 


Rated 4.2 out of 5 by 101 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 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 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 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 5.0 out of 5.0 by Saved me from buying a new toilet The water pressure on my home is on the high side which causes running water to be loud in general. The old toilet fill kit was loud and when it was done filling there would sometimes be a bang from water hammer. A few years ago I started looking online for recommendations on quiet toilets. I saw this fill valve recommended on a plumbing forum so I gave it a shot since it was much cheaper and easier than buying a new toilet. It was as easy to install as any other fill valve and the sound reduction was very noticeable. I could still hear the rushing water in the pipes, as I do when water is turned on at any fixture, but the other loud noises, water filling, sometimes squealing and that bang at the end were gone or greatly reduced. When done filling, the valve closes slower than other toilet valves which eliminated the water hammer. You can still hear the toilet flushing but I think it's quieter. The biggest issue for me was how loud filling the toilet tank back up used to be and that's greatly reduced. I forget when I bought it but it must have been over 5 years ago and I haven't had a single problem with it. If your toilet is constantly running or you just want to quiet it down I would highly recommend this fill valve. January 12, 2013
Rated 1.0 out of 5.0 by Broke after only 2 years, won't shutoff After only 2 years, it stopped shutting off, and water kept running even after reaching the limit. January 28, 2015
Rated 5.0 out of 5.0 by Best Fill Valve on the market Easy to install and quieter than other valves. When the filter got a small stone in it, the factory service rep in Wisconsin talked me through taking the valve apart and clearing the filter. Very easy to disassemble, clean, and reassemble. Korky QuietFill Valve is a superior product to any fill valve on the market. May 5, 2015
Rated 4.0 out of 5.0 by Porky Fill Valve for toilet I chose the Korky over the Fluidmaster because it didn't have any moving parts I could see. The Fluidmaster has a adjustable part for the water level that felt cheap and bent after adjusting so i chose Korky instead. So far no problems. April 27, 2015
  • 2015-05-25T11:48:27.013-05:00
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Store Exclusive. This item is available for purchase in select stores only.