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Top-10 Toilet Fill Valves
Loved in the USA

Handpicked for quality & trusted by thousands of customers
#1
Top Rated in the USA
Fluidmaste
Fluidmaster

Born in the USA

Fluidmaster 400H-5003 Performax Universal Toilet Fill Valve with Tank and Bowl Water Control 2-Pack, Blue

Fast Delivery
10.0
18 021 reviews

Solid Value from a Trusted Brand

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1 402 bought in past month
#2
Fluidmaste
Fluidmaster

Born in the USA

Fluidmaster 400H-002 Performax Universal Toilet Fill Valve High Performance Tank and Bowl Water Control, 1-Pack, Multicolor

Fast Delivery
9.1
18 021 reviews

Solid Value from a Trusted Brand

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1 300 bought in past month
Last Purchases
H***y
New York, NY
4d ago
Jo***ph
Denver, CO
4d ago
E***a
Los Angeles, CA
1d ago
#3
KOHLER Sil
Kohler

Born in the USA

KOHLER Silent Fill Toilet Valve Kit, Genuine Part GP1138930, Adjustable with Multiple Fill-Rate Inserts (Pack of 4)

Fast Delivery
8.5
5 111 reviews

Solid Value from a Trusted Brand

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1 198 bought in past month
Well-made and worth every penny.
LilyMiami, FL
#4
Korky Quie
Korky

Korky QuietFILL Toilet Fill Valve - Universal Fits 99% of Toilets - Easy Height Adjust for Fast Install, 528, (Pack of 7)

Fast Delivery
8.5
5 535 reviews

Solid Value from a Trusted Brand

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1 096 bought in past month
Curated products trusted bytrust us brands
#5
Fluidmaste
Fluidmaster

Born in the USA

Fluidmaster 400AKRP10 Universal, All In One, Complete Toilet Tank Repair Kit For 2-Inch Flush Valve Toilets

Fast Delivery
7.9
7 633 reviews

Solid Value from a Trusted Brand

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994 bought in past month
#6
Kohler Gen
Kohler

Born in the USA

Kohler Genuine Part Gp1083167 Silent Fill Valve Kit For All Kohler Class Five Toilets,12.5" x 3.5" x 3"

17%OFF

Fast Delivery
7.9
10 040 reviews

Item still has Pre-Tariff price

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892 bought in past month
#7
TOTO Adjus
TOTO

TOTO Adjustable Replacement Fill Valve Assembly for Toilet Tanks

Fast Delivery
7.6
693 reviews

Solid Value from a Trusted Brand

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790 bought in past month
#8
Korky 830M
Korky

Korky 830MP QuietFILL Platinum Toilet Fill Valve and Premium Large 3-Inch Flapper-Easy to Install-Made in USA

17%OFF

Fast Delivery
7.3
355 reviews

Item still has Pre-Tariff price

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688 bought in past month
#9
American S
American Standard

Born in the USA

American Standard 7381125-400.0070A Universal Toilet Water Fill Valve, Black

Fast Delivery
7.0
1 788 reviews

Solid Value from a Trusted Brand

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586 bought in past month
#10
TOTO Combo
TOTO

TOTO Combo Kit - Universal Flapper (Replaces THU499S) & Fill Valve

Fast Delivery
7.0
625 reviews

Solid Value from a Trusted Brand

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484 bought in past month

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Korky Quie
Korky

Korky QuietFILL 2X Long Life Toilet Fill Valve - Universal Fits 99% of Toilets - Easy Height Adjust for Fast Install, 528X

Fast Delivery
923
verified reviews

Solid Value from a Trusted Brand

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382 bought in past month
Fluidmaste
Fluidmaster

Born in the USA

Fluidmaster K-400A-5004 Universal Toilet Fill Valve and 2 in. Toilet Flapper Repair Kit

Fast Delivery
33 637
verified reviews

Solid Value from a Trusted Brand

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280 bought in past month
Fluidmaste
Fluidmaster

Born in the USA

Fluidmaster K-400H-040-T5 PerforMAX Fill Valve and 3-Inch Flapper Toilet Repair Kit, Multicolor

Fast Delivery
753
verified reviews

Solid Value from a Trusted Brand

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178 bought in past month
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Fluidmaste
Fluidmaster

Born in the USA

Fluidmaster 400A133 Premium Filling Valve Universal High Performance Toilet Fill Valve - 3 Pack

Fast Delivery
170
verified reviews

Solid Value from a Trusted Brand

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76 bought in past month
Korky 528T
Korky

Korky 528T Replacement TOTO Toilet Fill Valve - Fits G-Max and Power Gravity Toilets -Easy to Install -Made in USA, Black

Fast Delivery
1 800
verified reviews

Solid Value from a Trusted Brand

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Our Top Picks

#1

Winner

Fluidmaster 400H-5003 Performax Universal Toilet Fill Valve with Tank and Bowl Water Control 2-Pack, Blue

Rating
10.0
Chosen by1,402
Ease of Installation
Noise Level
Adjustability

Most important from
18021 reviews

Ease of Installation
Installation is straightforward and quick, with clear instructions making it accessible even for DIY beginners.
Noise Level
The valve significantly improves toilet refill speed and reduces noise compared to older models.
Adjustability
Adjusting water levels in both the tank and bowl allows for a customized flush that enhances performance and water efficiency.
Compatibility
This fill valve fits perfectly in various toilet models, including Kohler, without leaks or issues.

The Fluidmaster 400H-5003 Performax Universal Toilet Fill Valve 2-pack is designed to fit most toilet models, making it a versatile choice for many households. Its universal fit and EZ-Twist height adjustment (from 9 to 14 inches) help it accommodate a wide range of tanks, which means fewer compatibility worries. The valve offers tank and bowl water level dials, allowing you to customize the flush for better performance and water savings.

This model is praised for being one of the quietest and most powerful fill valves, providing a faster refill and stronger flush compared to standard valves. Installation is straightforward thanks to clear, step-by-step instructions, making it suitable even for DIY beginners. The durable plastic construction backed by a 7-year limited warranty adds confidence in its long-term reliability. While the valve is generally quiet, some users might notice minor noise depending on their water pressure or toilet type.

Being made of plastic rather than metal might be a drawback for those seeking maximum durability over many years. Taking into account the price and ease of use, the Fluidmaster 400H-5003 offers a solid balance of performance, quiet operation, and adjustability, making it a strong option for anyone needing to replace or upgrade their toilet fill valve.

Rating
10.0
Chosen by1,402
Ease of Installation
Noise Level
Adjustability

Most important from
18021 reviews

Ease of Installation
Installation is straightforward and quick, with clear instructions making it accessible even for DIY beginners.
Noise Level
The valve significantly improves toilet refill speed and reduces noise compared to older models.
Adjustability
Adjusting water levels in both the tank and bowl allows for a customized flush that enhances performance and water efficiency.
Compatibility
This fill valve fits perfectly in various toilet models, including Kohler, without leaks or issues.
#2

Fluidmaster 400H-002 Performax Universal Toilet Fill Valve High Performance Tank and Bowl Water Control, 1-Pack, Multicolor

Rating
9.1
Compatibility
Adjustability
Noise Level

Most important from
18021 reviews

Compatibility
Better quality and fit compared to other brands.
Adjustability
Straightforward water level adjustments.
Noise Level
Quick and quiet filling of the toilet tank.
Ease of Installation
Super easy installation with clear instructions.

The Fluidmaster 400H-002 Performax Universal Toilet Fill Valve is a popular choice for those looking to replace noisy or slow-filling valves. One of the standout features is its quiet operation, which is a significant improvement over many other fill valves, making it an excellent option for households sensitive to noise. Its universal fit ensures compatibility with most toilet models and brands, adding to its versatility.

Additionally, the EZ-Twist height adjustment feature, which ranges from 9 to 14 inches, allows for a customizable fit in various tank sizes, supporting precise water level adjustments for efficient flushes and water conservation. Installation is straightforward, thanks to the step-by-step instructions included, making it accessible even for those without professional plumbing experience.

Durability-wise, the valve is constructed from plastic and rubber, which should offer reasonable longevity, and it comes with a 7-year manufacturer warranty for added peace of mind. However, some users might find the plastic build less robust compared to metal alternatives. In summary, the Fluidmaster 400H-002 offers a solid balance of quiet performance, ease of installation, and adjustable features, making it a reliable choice for most standard toilet setups.

Rating
9.1
Compatibility
Adjustability
Noise Level

Most important from
18021 reviews

Compatibility
Better quality and fit compared to other brands.
Adjustability
Straightforward water level adjustments.
Noise Level
Quick and quiet filling of the toilet tank.
Ease of Installation
Super easy installation with clear instructions.
#3

KOHLER Silent Fill Toilet Valve Kit, Genuine Part GP1138930, Adjustable with Multiple Fill-Rate Inserts (Pack of 4)

The KOHLER Silent Fill Toilet Valve Kit is a solid choice if you're looking to replace or upgrade your toilet's fill valves. It comes as a pack of four, which can be handy if you have multiple toilets or want spares. One of its key strengths is compatibility; since it's a genuine Kohler part, it fits well with many Kohler toilets, but it also works with other brands as long as the connections match, thanks to its standard compression fittings. The valve offers good adjustability, featuring multiple fill-rate inserts that let you control how quickly your tank refills, helping to optimize water use. As the name suggests, it operates quietly, so you won’t be bothered by loud refilling noises.

Durability is another plus because it’s made with metal components and certified to meet several industry standards, which means it should last well under normal use. Installation is designed to be user-friendly with standard compression connectors, making it easier for DIYers to replace existing valves without special tools. Some users might find the plastic exterior less robust compared to fully metal valves. Also, while it’s adjustable, fine-tuning the fill rate might require a bit of trial and error for those unfamiliar with toilet repairs. This kit suits homeowners wanting a quiet, reliable, and adjustable fill valve that is relatively easy to install and backed by a trusted brand, though a bit of patience might be needed during setup.

Buying Guide for the Best Toilet Fill Valves

Choosing the right toilet fill valve is essential for ensuring your toilet operates efficiently and effectively. The fill valve controls the water flow into the toilet tank, and a good one can help prevent leaks, reduce noise, and ensure a proper flush. When selecting a fill valve, consider the compatibility with your toilet, the ease of installation, and the durability of the materials. Here are some key specifications to consider when choosing a toilet fill valve.
CompatibilityCompatibility refers to whether the fill valve will fit and work properly with your specific toilet model. This is important because not all fill valves are universal. To navigate this, check the manufacturer’s recommendations for your toilet model or look for fill valves labeled as 'universal' which are designed to fit most toilets. If you have a specific brand or model, it’s best to find a fill valve that is recommended for that particular toilet to ensure proper function.
AdjustabilityAdjustability in a fill valve allows you to control the water level in the tank. This is important for ensuring that your toilet flushes properly and efficiently. Fill valves with adjustable height can fit a range of tank sizes, making them versatile. If you have a standard toilet, a basic adjustable fill valve should suffice. For larger or smaller tanks, look for fill valves with a wider range of adjustability to ensure the water level is set correctly.
Noise LevelNoise level refers to how loud the fill valve is when it is refilling the tank. This is important for maintaining a quiet bathroom environment, especially if the bathroom is near living or sleeping areas. Some fill valves are designed to be quieter than others. If noise is a concern for you, look for fill valves that are specifically marketed as 'quiet' or 'silent'. These typically have features that reduce the sound of running water.
DurabilityDurability refers to how long the fill valve will last before needing replacement. This is important for long-term maintenance and cost-effectiveness. Fill valves made from high-quality materials like stainless steel or durable plastics tend to last longer. When choosing a fill valve, consider the material it is made from and look for ones with good reviews regarding their longevity. If you want a long-lasting solution, opt for a fill valve with a reputation for durability.
Ease of InstallationEase of installation refers to how simple it is to install the fill valve in your toilet. This is important for those who prefer to do their own repairs or installations. Some fill valves come with detailed instructions and require minimal tools, making them easier to install. If you are not very handy, look for fill valves that are labeled as 'easy to install' or come with comprehensive installation guides. This will save you time and potential frustration.

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