Korky QuietFILL Toilet Fill Valve - Universal Fits 99% of Toilets - Easy Height Adjust for Fast Install, 528
Condition: New
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Availability:
In Stock.
Arrives
Nov 5 – Nov 12
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At a glance
- Condition
- New
- Size
- Universal
- Dimensions
- 4 x 2.25 x 7.75 in
- Weight
- 8.8 oz
- Material
- Plastic
- Exterior Finish
- Metal,Rubber
- Inlet Connection Size
- 7.75 in
- In the box
- Includes: (1) Fill Valve(1) Refill Tube(1) Metal Refill Tube Clip(1) Mounting Nut(1) Cone Washer(1) Coupling Nut(1) and (1) Instructions
Features 5
- 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.
Description
Designed to fix no/slow refilling, running, and noisy toilets, the Korky QuietFILL Toilet Fill Valve is 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. Easy to install, the 528 includes: (1) Fill Valve, (1) Refill Tube, (1) Metal Refill Tube Clip, (1) Mounting Nut, (1) Cone Washer, (1) Coupling Nut, (1) Tamper Proof Key and (1) Instructions. From the Manufacturer Designed to fix no/slow refilling, running, and noisy toilets, the Korky QuietFILL Toilet Fill Valve is 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. Easy to install, the 528 includes: (1) Fill Valve, (1) Refill Tube, (1) Metal Refill Tube Clip, (1) Mounting Nut, (1) Cone Washer, (1) Coupling Nut, (1) Tamper Proof Key and (1) Instructions.
Specs 27
| Material | Plastic |
|---|---|
| Brand | Korky |
| Item dimensions L x W x H | 4 x 2.25 x 7.75 inches |
| Exterior Finish | Metal,Rubber |
| Inlet Connection Size | 7.75 inches |
| Inlet Connection Type | Fill |
| Outlet Connection Type | Flange |
| Number of Packs | 1 |
| Global Trade Identification Number | 22 |
| Unit Count | 1 Count |
| Brand Name | Korky |
| Model Number | 528 |
| Manufacturer | Korky |
| Manufacturer Warranty Description | 5 year warranty |
| Number of Items | 1 |
| UPC | 749306528022 |
| Item Type Name | Toilet Fill Valve |
| Item Weight | 8.8 ounces |
| Number of Pieces | 7 |
| Set Name | Korky |
| Manufacturer Part Number | 528 |
| Thread Type | NPT |
| Connector Type | Flanged |
| Valve Type | Float Valve |
| Item Dimensions | 4 x 2.25 x 7.75 inches |
| Size | Universal |
| Material Type | Plastic |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Nov 5 – Nov 12
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Silent, Simple, and Solid Upgrade for Any Toilet
Size: Universal
Silent, Simple, and Solid Upgrade for Any Toilet This Korky QuietFILL toilet fill valve really lives up to its name. Installation was straightforward—about ten minutes with just a pair of pliers—and the adjustable height made it fit my older toilet without any fuss. The instructions were clear, but honestly, the design is so intuitive that you barely need them. The biggest upgrade over my old valve is how quiet it runs. Gone is the constant rushing noise after every flush; instead, it fills quickly and with just a soft hum. I also appreciate that it shuts off cleanly with no hissing or trickling afterward, which I had with the worn-out valve it replaced. The build feels sturdy, not flimsy like some generic valves. It also comes with a twist-lock height adjuster that makes fine-tuning easy without disassembling the whole thing. I tested it on a couple of toilets around the house, and true to the claim, it really does fit nearly all standard models. Something to keep in mind: if you have very hard water, sediment can eventually clog any fill valve, so it’s worth cleaning the seal occasionally. But this one seems designed to handle that better than most, and replacement seals are inexpensive if ever needed. Bottom line: A quiet, reliable, and easy-to-install fix that makes an old toilet feel brand new. One of those small home upgrades that pays off immediately in everyday use.
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Reviewed in the United States on August 29, 2025 by Everyday Reviews
2+ years and going strong
Size: Universal
Fit our Standard toilet without issue. Installation was easy if you follow the instructions explicitly. Took a bit of adjustment to get the fill level correct, but, once installed and set, have not had to think about it since. No leaking, no hissing, no air bubbles and no random water level correction. Frankly everything I expect out of a toilet fill valve.
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Reviewed in the United States on September 2, 2026 by Heihojin
Straightforward to install, excellent performance, incredible price, made in USA
Size: Universal
I haven't replaced a toilet fill valve in many years, but I remember the last one being troublesome since it was a different brand and model from the original in the toilet tank. This Korky is wonderful, however - very simple and straightforward instructions and then it operates more quietly and very reliably so far - if that changes I'll be back to edit the review. Replacing this yourself will save you anywhere from $125-300 for the labor. If you think you can't do it or are afraid of plumbing issues - I get it, I don't like water seeking any unsealed gap and causing leaks - ask a handy friend to help. Removing the old fill valve is pretty easy, the only issue I had was that the water 'pipe' in the toilet to which the flap is secured at the bottom and where the rubber/plastic tube is clipped at the top for filling that pipe (which then fills the tank) had a round plastic piece at the top shaped like the 'theta' symbol. I wondered if it was permanently connected to the pipe, but gently wiggled it with cloth-covered pliers and it came off easily allowing me to clip the water tube from the fill valve where it appropriately connects. The other tip is to make sure the 'line' marked on the fill valve is 1/2" below the top of that water intake pipe where the fill valve plastic tube connects. I had to cut off about 1" of the plastic tube since it was too long for the distance between the fill valve connection and the water intake pipe. All in all it took about 1 hour since I haven't done it often. I really appreciate that it's made in the USA and gets fantastic reviews.
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Reviewed in the United States on October 26, 2025 by Sonicmoon
good value
Size: Universal
just a spare part, haven't installed this one but they always work good
Reviewed in the United States on February 6, 2026 by Danny Sloan
good choice
Size: Universal
packed well shipped promptly and price was right, was easy to install and so far it is working perfect will buy again
Reviewed in the United States on September 8, 2026 by britt eddins
Perfect Replacement Valve!
Size: Universal
Excellent, simple desgn,simple install. Works perfectly & MADE IN THE USA! Cant comment on longevity yet but function is great so far
Reviewed in the United States on July 24, 2026 by epaminondas
Well Designed, Well Made, Inexpensive, Easy to Use
Size: Universal
Installed today. Took me about 30 minutes with the wife as my assistant. (Probably only 20 had I been on my own, heh, heh...) This is far better than the one I got at the big orange store eight years ago. I will be getting a second one for the other bathroom this next payday. Works perfectly, no leaks, very quiet, fills pretty quickly. This is a good product. It is also popular, so you can find a lot of anecdotal information and even videos online if you are worried about doing this yourself. I replaced mine with a similar kit in 2008 when I installed a new wax ring and seat when we bought this house. It always had this drip I could hear late at night. I was sure we had a leak under the house. Nope. It was that cheap valve, and it only got worse over time. Recently it simply started running non-stop. The Korky 528 was easier to install and works better out of the box. The price is also very reasonable. If you need to do this and are worried about it being difficult or messy, it is neither. You *will* have water to blot up afterwards. You *will* come to one of the last instructions and have a few "HUH?" moments. I would simply read the instructions and look at that one illustration that shows all the different types of lines to connect to, and work out in your head exactly which hose type is coming up from your floor or wall and carefully look at the illustration to see which parts you need to use. I have braided stainless steel over flexible hose and did not have to use a few parts. Older fixtures that use that steel gooseneck lamp-type of hose and hand bend pipes will need the extra parts. If you are not sure, do this in the middle of a week day and you can call them for help, I think. Also, you can watch videos.
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Reviewed in the United States on September 3, 2015 by Pachyderm
Works with my Niagra Stealth toilet. Easy to install & adjust. 10-15 minutes.
Size: Universal
After many years, the original fill-valve failed on my Niagra Stealth vacuum assisted toilet. I was worried that this new-style fill-valve wouldn't fit into the relatively small space available alongside the flushing mechanism. It does fit. I had to unlock the white-covered float valve by twisting it all the way to the right when I installed it using the hand-tight nut. Then after installation when I locked the white float-valve (by twisting it left at the proper fill-height), it locked into place with just barely enough clearance before hitting the side of the tank, as can be seen in my photo. (NOTE: If you need to adjust the float height after installation, be sure to shut off the water first!) I added the tube using the included stainless steel clip. Everything is working well. Before and after photos attached. We'll see how long it lasts, but for now I'm giving it 5-stars. I'll likely revise this review if it doesn't last several years.
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Reviewed in the United States on August 11, 2025 by Dave Rave