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100+ bought last week
Korky Genuine TOTO 3-in Adjustable Toilet Fill Valve
Item #3625378 |
Model #528GPK
4.6
$26.97
Korky Genuine TOTO 3-in Adjustable Toilet Fill Valve
4.6
$26.97
Best Price. Guaranteed
Find a lower price on an exact item? We'll match it. Some exclusions apply.
Learn MoreThe genuine TOTO universal fill valve by Korky is designed to replace all TOTO fill valves including: drake, eco drake, Ultra max, and all other TOTO toilet models. Designed to fix no/slow refilling, running, and noisy toilets, the fill valve is quieter than other fill valves. The genuine TOTO 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 fill valve adjusts to fit both large and compact toilet tanks. Easy to install, the 528GT includes: (1) toilet fill valve, (1) refill tube and clip, (1) refill adjuster, (1) tamper proof key and (1) Instructions.
Genuine TOTO universal replacement toilet fill valve for all TOTO toilets
Higher refill ratio for optimum performance in TOTO toilets
Easy to install and adjust
No tools required
Adjustable height
Made in the USA
5 Year warranty
Includes: (1) 528GT toilet 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
General | |||
|---|---|---|---|
Series Name | Genuine TOTO | Package Contents | Includes: (1) 528GT toilet 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 |
Type | Fill valve | ||
Dimensions | |||
|---|---|---|---|
Diameter (Inches) | 3 | Minimum Height (Inches) | 8.5 |
Maximum Height (Inches) | 14 | ||
Features | |||
|---|---|---|---|
Adjustable | Yes | Leak Detection | No |
Anti-Siphon | Yes | Universal Fit | No |
Chemical Resistant | Yes | ||
Compatibility | |||
|---|---|---|---|
Brand/Model Compatibility | Toto | For Use with Urinals | No |
Certifications | |||
|---|---|---|---|
CA Residents: Prop 65 Warning(s) | No | ||
Warranty | |||
|---|---|---|---|
Warranty | 5-year | ||
Miscellaneous | |||
|---|---|---|---|
UNSPSC | 40141600 | ||
Check out the Best Selling Toilet Fill Valves on Lowes.com
Review
74 Reviews
88% Recommend this product
Ratings may include incentivized customer reviews.
+ 11 images
What Customers Are Saying
The product is well-made and durable, with adjustable water flow features that allow users to optimize water usage. Most customers praise the simple and straightforward installation process, though a few have reported issues with the valve's longevity, such as leaks or premature failure. Overall, the product is widely recommended for its quality, functionality, and user-friendly design.
Customer review summary generated by AI, including incentivized reviews.74 Customer Reviews
Review
Much better than OEM stock. I'm very happy that Lowes carries TOTO compatible products.
PYOctober 19, 2025
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Worked Just Fine
It worked just fine. Easy to install.
MeemaOctober 8, 2025
Verified Purchaser
Verified Purchaser
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TOTOlly Great.
The valve was easy to install and worked like a charm.
ZoootOctober 2, 2025
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Verified Purchaser
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Easy to install
Worked well, quick fix and easy to install
WissSeptember 21, 2025
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Verified Purchaser
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Perfect replacement for Toto fill valve
Clear instructions, easy installation, worked like a charm.
Amateur plumberSeptember 12, 2025
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Verified Purchaser
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Perfect fit, easy installation, positive shut-off.
No more leaking by!!!
WalleyeJoeAugust 28, 2025
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Verified Purchaser
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The directions were excellent to have if needed.
Very nice that Lowe’s stocks genuine Toto replacement items. That made it very simple to exchange the parts.
Does not applyAugust 26, 2025
Verified Purchaser
Verified Purchaser
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5 minute fix!
Perfect fit. Easy & fast to install
JaybirdAugust 24, 2025
Verified Purchaser
Verified Purchaser
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Not shutting off completely
Missing mounting parts - had to reuse old parts. Then it started not completely shutting off after only a few weeks of use. Replaced it with a original euro style fill valve - much better design.
JamesAugust 23, 2025
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See above
I like the product but I wish I had it all in the box. The new parts I needed to install the valve were missing from the box. Since I was in the middle of the installation I used the old parts. After much work I got it to seal the mounting. I Learned a lesson…check the box.
RickAugust 14, 2025
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Response from Korky Toilet Genius
We’re sorry this happened. It’s not normal. We are always here to help and able to identify and come up with a solution. Please consider calling ou...
Korky Toilet GeniusAugust 20, 2025
4 Questions
4 Questions
Walleye on September 22, 2025
1
Answer
Peapod on May 9, 2024
1
Answer
Kristin on February 25, 2022
1
Answer
Sadie on August 29, 2021
1
Answer
We’re sorry this happened. It’s not normal. We are always here to help and able to identify and come up with a solution. Please consider calling ou...