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Can I install without tools?What is the warranty period?How do I adjust the height?Is it compatible with all TOTO toilets?Will this prevent siphoning?

Korky Genuine TOTO 3-in Adjustable Toilet Fill Valve

Name: Korky Genuine TOTO 3-in Adjustable Toilet Fill Valve
Brand: Korky
SKU: 5001419035
Price: 26.98 USD
Availability: InStock
Rating: 4.6 (93 reviews)

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4.6

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Thu, Oct 8

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The 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
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	Series Name	Genuine TOTO
Type	Fill valve

Dimensions
Diameter (Inches)	3	Maximum Height (Inches)	14
Minimum Height (Inches)	8.5

Features
Leak Detection	No	Chemical Resistant	Yes
Anti-Siphon	Yes	Universal Fit	No
Adjustable	Yes

Compatibility
For Use with Urinals	No	Brand/Model Compatibility	Toto

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

4.6 out of 5

93 Reviews

87% Recommend this product

Ratings may include incentivized customer reviews.

+ 12

What Customers Are Saying

Customers overwhelmingly praise this fill valve for straightforward installation, reliable performance, and thoughtful design. Most highlight easy setup in under 30 minutes without special tools, adjustable height and water level features, and quiet operation. The valve fills tanks quickly, stops at precise levels, and eliminates leaks consistently. Many note it as a seamless replacement for Toto toilets with durable plastic construction and a five-year warranty. A few report minor noise or stiff tubing, but these isolated concerns don't diminish the strong overall satisfaction and recommendation.

Customer review summary generated by AI, including incentivized reviews.

93 Customer Reviews

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Good

Great item

Non nonSeptember 21, 2026
Verified Purchaser

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Easy installation!

This was easy to install and instructions were very clear.

DewittSeptember 18, 2026
Verified Purchaser

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COMPARE PRODUCTS

		Name	Current Item KorkyGenuine TOTO 3-in Adjustable Toilet Fill Valve
		Ratings	93
		Universal Fit
		Type	Fill valve
		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
Fluidmaster3-in Universal Adjustable Toilet Fill Valve	TOTO TSU99A.XR Universal Fill Valve Replacement	Korky QuietFILL Platinum Toilet Fill Valve - Universal Fits 99 of Toilets - Easy Height Adjust for Fast Install 528MP	Korky QuietFILL Toilet Fill Valve - Universal Fits 99 of Toilets - Easy Height Adjust for Fast Install 528 (Pack of 7)	KOHLERRevival, Rialto, San Raphael 2.3-in Toilet Fill Valve	KOHLERSan Raphael Toilet Fill Valve	Fluidmaster Performax 400H-5003 Universal Toilet Fill Valve 2-Pack Blue	OGETFUUR9in Adjustable Toilet Fill Valve with BPA-free ABS plastic for Universal Toilet Replacement Kit	OGETFUUR8.8in Adjustable Silent Toilet Fill Valve with Anti-Siphon and Water-Saving for Toilet Tank Replacement Kit
314				64	8

Fill valve		Fill valve		Fill valve	Fill valve	Fill valve	Fill valve	Fill valve
3 fill valves, 3 refill tubes, 3 clips, 3 shank washers, 3 nuts		Includes: (1) Fill Valve, (1) Refill Tube		Fill Valve	Fill valve assembly	Toilet Fill Valves	1	1