The best toilet fill valves fix that constant hissing, slow refilling, and random running water that keeps everyone awake.
Top picks like Fluidmaster Performax, Korky QuietFILL Platinum, Korky QuietFILL 2X, and Fluidmaster 400A-019 handle those problems fast. Bulk kits from brands like Lasnten work great for rentals or homes with several bathrooms.
Most options adjust to different tank heights, save water, and fit almost any toilet brand, and the next sections show how to choose the right one.
| Fluidmaster Performax Universal Toilet Fill Valve (2-Pack) |
| Best Overall | Adjustability (Height Range): 9″–14″ EZ-Twist adjustable | Compatibility (Toilet Fit): Universal; fits most toilets (1.28, 1.6, 3.5 GPF) | Noise Level / Operation: Ultra-quiet operation; more powerful bowl refill | VIEW LATEST PRICE | Read Our Analysis |
| Lasnten Toilet Fill Valve Replacement Kit (8 Pieces) |
| Bulk Value Pack | Adjustability (Height Range): ~8″–13″ adjustable | Compatibility (Toilet Fit): Fits most toilets, 1.6–2.6+ GPF | Noise Level / Operation: Smooth and quiet operation | VIEW LATEST PRICE | Read Our Analysis |
| Lasnten Toilet Fill Valve Replacement Kit (16 Pieces) |
| High-Volume Supply | Adjustability (Height Range): ~8″–13″ adjustable | Compatibility (Toilet Fit): Fits most toilets, 1.6–2.6+ GPF | Noise Level / Operation: Smooth, quiet inflow and shutoff | VIEW LATEST PRICE | Read Our Analysis |
| Korky QuietFILL Platinum Universal Toilet Fill Valve |
| Easiest Installation | Adjustability (Height Range): 7.75″–13.5″ twist-lock adjustable | Compatibility (Toilet Fit): Fits 99% of toilets; 1-piece & 2-piece; replaces ballcocks | Noise Level / Operation: QuietFILL design for quiet refilling | VIEW LATEST PRICE | Read Our Analysis |
| American Standard Fluidmaster 400A Universal Toilet Fill Valve |
| Reliable Classic | Adjustability (Height Range): Adjustable (universal fit; exact range not specified) | Compatibility (Toilet Fit): Universal design for most toilets | Noise Level / Operation: Reliable, standard quiet operation (noise not emphasized) | VIEW LATEST PRICE | Read Our Analysis |
| Fluidmaster High Performance Toilet Fill Valve & Flapper |
| Best Repair Kit | Adjustability (Height Range): Adjustable height to fit various tanks (range not specified) | Compatibility (Toilet Fit): Universal for 2″ flush valve toilets | Noise Level / Operation: Quiet, high-performance operation | VIEW LATEST PRICE | Read Our Analysis |
| T Tulead Adjustable Toilet Fill Valve Replacement Kit |
| Simple Budget Pick | Adjustability (Height Range): 7.68″–12″ adjustable | Compatibility (Toilet Fit): Compatible with most toilet tanks | Noise Level / Operation: Reduces noisy, slow-filling issues | VIEW LATEST PRICE | Read Our Analysis |
| Korky QuietFILL 2X Long Life Toilet Fill Valve |
| Longest-Lasting Choice | Adjustability (Height Range): Easy height adjustment (range not specified) | Compatibility (Toilet Fit): Universal fit for 99% of toilets; optimized for newer HET | Noise Level / Operation: QuietFILL; fixes running/noisy refill | VIEW LATEST PRICE | Read Our Analysis |
| Fluidmaster 400A-019 Brass Shank Toilet Fill Valve |
| Heavy-Duty Upgrade | Adjustability (Height Range): 9″–14″ EZ-Twist adjustable | Compatibility (Toilet Fit): Fits more tank sizes via 9″–14″ adjustment | Noise Level / Operation: Quiet, powerful operation | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
Fluidmaster Performax Universal Toilet Fill Valve (2-Pack)
In the event that you’re tired of a toilet that hisses, groans, or takes forever to refill, the Fluidmaster Performax Universal Toilet Fill Valve 2-pack is built for you. You get ultra quiet refills and stronger, faster bowl fill, so the flush feels powerful again without wasting water.
You can adjust both tank and bowl levels with simple dials, which helps you fine tune performance for older 3.5 GPF toilets or newer 1.28 and 1.6 GPF models. The EZ Twist height lets you match most tanks, and the universal design fits major brands. Installation feels simple, even should you be nervous.
- Adjustability (Height Range):9″–14″ EZ-Twist adjustable
- Compatibility (Toilet Fit):Universal; fits most toilets (1.28, 1.6, 3.5 GPF)
- Noise Level / Operation:Ultra-quiet operation; more powerful bowl refill
- Primary Material:Plastic
- Included Components:Fill valve, washer, locknut, tube, clip (2-pack)
- Key Performance Benefit:Fixes noisy/slow fill; 2X bowl refill; adjustable tank & bowl levels
- Additional Feature:2X faster bowl refill
- Additional Feature:Anti-siphon code approved
- Additional Feature:Seven-year limited warranty
Lasnten Toilet Fill Valve Replacement Kit (8 Pieces)
Bulk projects become a lot less stressful with the Lasnten Toilet Fill Valve Replacement Kit, because you get 8 adjustable valves in one package that you can rely on. In case you manage several rentals, bathrooms, or flips, this kit keeps you ready for surprise leaks and noisy tanks without last minute store runs.
Each valve adjusts from about 8 to 13 inches, fits standard G15/16 shanks, and works with most 1.6 to 2.6+ gallon toilets. The POM and PP body feels sturdy and resists wear, so you’re not redoing the same repair. Installation only takes minutes, especially with the image guide, and refills stay smooth and quiet.
- Adjustability (Height Range):~8″–13″ adjustable
- Compatibility (Toilet Fit):Fits most toilets, 1.6–2.6+ GPF
- Noise Level / Operation:Smooth and quiet operation
- Primary Material:POM and PP plastic
- Included Components:Fill valve only (8 valves total; install images)
- Key Performance Benefit:Replaces outdated/noisy valves; efficient inflow and shutoff
- Additional Feature:Bulk 8-valve pack
- Additional Feature:Installation images included
- Additional Feature:Fine craftsmanship build
Lasnten Toilet Fill Valve Replacement Kit (16 Pieces)
Choosing the Lasnten Toilet Fill Valve Replacement Kit makes a lot of sense in case you manage several bathrooms or just never want to scramble for a last-minute replacement again. You get 16 fill valves in one package, so you can fix multiple toilets now and still have spares ready. That alone can lower your stress during leaks or noisy refills.
You can adjust each valve from about 8 to 13 inches, so it fits most 1.6 to 2.6 plus gallon tanks. The G15/16 shank and 8 inch connections match common brands, while the POM and PP body gives smooth, quiet, reliable refills.
- Adjustability (Height Range):~8″–13″ adjustable
- Compatibility (Toilet Fit):Fits most toilets, 1.6–2.6+ GPF
- Noise Level / Operation:Smooth, quiet inflow and shutoff
- Primary Material:POM and PP plastic
- Included Components:Fill valve only (16 valves total; install images)
- Key Performance Benefit:Restores performance; smooth, quiet inflow; multiple replacements
- Additional Feature:High-volume 16-pack
- Additional Feature:7.5-pound bulk set
- Additional Feature:2024 release model
Korky QuietFILL Platinum Universal Toilet Fill Valve
Silence and simplicity make the Korky QuietFILL Platinum Universal Toilet Fill Valve a great pick should you be tired of a noisy tank and constant tinkering. You get a quiet refill, so you’re not listening to rushing water after every flush. It fits 99 percent of toilets, both 2-piece and 1-piece, so you don’t have to second-guess compatibility.
You can twist-lock the height from 7.75 to 13.5 inches, which makes installation fast and painless, often under 5 minutes. The chlorazone red rubber parts handle wear and treated water, so you fix your problem once instead of fixing it again later.
- Adjustability (Height Range):7.75″–13.5″ twist-lock adjustable
- Compatibility (Toilet Fit):Fits 99% of toilets; 1-piece & 2-piece; replaces ballcocks
- Noise Level / Operation:QuietFILL design for quiet refilling
- Primary Material:Plastic body with chlorazone red rubber components
- Included Components:Fill valve, refill tube, metal clip, mounting nut, cone washer, refill adjuster, coupling nut, instructions
- Key Performance Benefit:Quickly fixes running/worn valves with easy, tamper-proof adjustment
- Additional Feature:Tamper-proof adjustment key
- Additional Feature:Installs under five minutes
- Additional Feature:Made in Wisconsin
American Standard Fluidmaster 400A Universal Toilet Fill Valve
Provided that you’re tired of a noisy, slow, or stubborn toilet tank, the American Standard Fluidmaster 400A Universal Toilet Fill Valve is one of the most reliable fixes you can choose. It gives your toilet a fresh start, so you don’t have to keep jiggling the handle or listening for constant refills.
You get a full kit with the valve, shank washer, lock, coupling nuts, coupling washer, refill tube, and clip. The universal design fits most toilets, as long as you double-check your model. It installs easily, holds up in busy bathrooms, and keeps the tank filling smoothly every time.
- Adjustability (Height Range):Adjustable (universal fit; exact range not specified)
- Compatibility (Toilet Fit):Universal design for most toilets
- Noise Level / Operation:Reliable, standard quiet operation (noise not emphasized)
- Primary Material:Plastic (black)
- Included Components:Valve, shank washer, lock, coupling nuts, coupling washer, refill tube, refill tube clip
- Key Performance Benefit:Provides reliable, consistent refilling in high-use toilets
- Additional Feature:High-use area rated
- Additional Feature:American Standard branded
- Additional Feature:Compact 3-inch height
Fluidmaster High Performance Toilet Fill Valve & Flapper
Should your older toilet keeps running, wastes water, or just doesn’t flush as it used to, the Fluidmaster High Performance Toilet Fill Valve & Flapper kit is designed for you. You get a complete package that replaces both the noisy fill valve and the leaky 2 inch flapper, so your tank operates like new again.
You can adjust the water directed to the tank and the bowl, which helps you save water without weakening the flush. The flapper’s solid frame resists warping, so it seals tight and stops that constant running sound. It installs quickly, fits most 2 inch flush valves, and comes backed with a 7 year limited warranty.
- Adjustability (Height Range):Adjustable height to fit various tanks (range not specified)
- Compatibility (Toilet Fit):Universal for 2″ flush valve toilets
- Noise Level / Operation:Quiet, high-performance operation
- Primary Material:Plastic
- Included Components:PerforMAX fill valve + 2″ adjustable flapper (complete kit)
- Key Performance Benefit:Restores 2″ flush toilets to like-new; water-saving flapper; full water control
- Additional Feature:Includes 2-inch flapper
- Additional Feature:Corrosion-resistant flapper frame
- Additional Feature:Meets CSA/ULC standards
T Tulead Adjustable Toilet Fill Valve Replacement Kit
In case you’re tired of a toilet that fills slowly, makes noise, or keeps leaking, the T Tulead Adjustable Toilet Fill Valve Replacement Kit can feel like a small lifesaver. You get a full replacement valve that helps your tank fill at a steady pace without that constant hissing or trickling sound that keeps you on edge.
You can adjust the height from about 7.7 to 12 inches, so it fits most standard tanks. The threaded base lets you tighten it securely, and you can install it yourself with simple tools. Once it’s in, it keeps water at the right level, cuts waste, and helps lower your bill.
- Adjustability (Height Range):7.68″–12″ adjustable
- Compatibility (Toilet Fit):Compatible with most toilet tanks
- Noise Level / Operation:Reduces noisy, slow-filling issues
- Primary Material:Plastic (material not further specified)
- Included Components:One toilet fill valve (single replacement kit)
- Key Performance Benefit:Fixes slow filling, noisy, or leaking valves; improves efficiency
- Additional Feature:Water-saving tank control
- Additional Feature:DIY-friendly installation
- Additional Feature:Single-valve budget option
Korky QuietFILL 2X Long Life Toilet Fill Valve
Tired of a toilet that never seems to shut up or fill right? The Korky QuietFILL 2X Long Life Fill Valve model 528X helps you finally calm that constant hissing, running, or weak flush. It fits about 99 percent of toilets, especially newer high efficiency models, so you don’t have to guess much.
You can adjust the height manually, which makes installation feel simple instead of stressful. Once it’s in, it sends the right amount of water into the bowl, so refills speed up and flushes feel stronger. Its long life design also means you won’t reopen that tank anytime soon.
- Adjustability (Height Range):Easy height adjustment (range not specified)
- Compatibility (Toilet Fit):Universal fit for 99% of toilets; optimized for newer HET
- Noise Level / Operation:QuietFILL; fixes running/noisy refill
- Primary Material:Plastic (long-life design; exact resin not specified)
- Included Components:Toilet fill valve (hardware and adjuster integrated; not itemized)
- Key Performance Benefit:Fixes running, noisy, slow/no refill, weak flush; optimizes bowl water
- Additional Feature:Designed for HET toilets
- Additional Feature:Extends valve lifespan
- Additional Feature:Fixes weak flushes
Fluidmaster 400A-019 Brass Shank Toilet Fill Valve
Fluidmaster’s 400A-019 brass shank fill valve is a strong pick should you want a toilet fix that feels “install it once and forget about it.” This model takes the classic 400 series design and upgrades it with a heavy-duty brass shank, so it handles higher water pressure and daily use without cracking like cheaper plastic connections. That solid metal connection helps you feel safer about leaks and long term wear.
You’ll also appreciate how simple it is to live with. The EZ twist height adjusts from 9 to 14 inches, the pre-installed washer saves time, the dial fine tunes water level for savings, and the valve runs quietly with a 7 year warranty.
- Adjustability (Height Range):9″–14″ EZ-Twist adjustable
- Compatibility (Toilet Fit):Fits more tank sizes via 9″–14″ adjustment
- Noise Level / Operation:Quiet, powerful operation
- Primary Material:Plastic body with heavy-duty brass shank
- Included Components:Fill valve with pre-installed shank washer (other basic install hardware implied)
- Key Performance Benefit:Durable brass-shank upgrade; quiet, powerful refill with water-level adjustment
- Additional Feature:Heavy-duty brass shank
- Additional Feature:Pre-installed shank washer
- Additional Feature:Seven-year product warranty
Factors to Consider When Choosing Toilet Fill Valves
At the time someone chooses a new toilet fill valve, a few key details quietly decide whether it will feel like an upgrade or a headache. It helps to look closely at how well the valve fits the toilet type, how easily the height can be adjusted, how much noise it makes, and how it handles water use. From there, the strength of the materials and total durability bring all these factors together into a reliable, long-term fix.
Compatibility With Toilet Type
Because every toilet is built a little differently, matching the fill valve to the toilet type becomes one of the most essential choices a homeowner makes. Whenever someone picks the wrong style, they often end up with weak flushes, loud refills, or small leaks that quietly raise the water bill.
First, the fill valve must match the flush volume. High efficiency toilets use about 1.28 gallons per flush, many modern bowls use 1.6, and some older fixtures use 3.5. A valve designed for the right volume helps the toilet clear the bowl without wasting water.
Next, it helps to confirm that the valve fits 1 piece or 2 piece models, matches the tank’s inlet shank size and connection type, and carries anti siphon, code approved protection for safe drinking water.
Adjustable Height Range
Although it often gets overlooked, the adjustable height range on a toilet fill valve quietly decides how well the whole toilet will work. At the point someone chooses a valve that can shift from about 7.5 inches to 14 inches, it can match many tank sizes without awkward workarounds. This flexibility lets the water level hit the sweet spot so each flush feels strong and dependable.
With a wider adjustment range, one valve can fit older tall tanks and newer compact models. That helps avoid guesswork and extra parts. At the point the height is set correctly, the tank does not overfill, water is not wasted, and the bowl refills at a steady rate. Simple twist or sliding lock mechanisms also make future tweaks fast and low stress.
Noise Level Control
How quiet should a toilet really be during a refill cycle? For many homeowners, loud rushing or banging sounds feel stressful and embarrassing, especially at night. So noise level control becomes a real comfort feature, not a luxury.
A quiet fill valve usually starts with smooth water inflow and a gentle shutoff. Whenever water does not slam to a stop, there is less echo through the pipes. Valves with anti-siphon and pressure-regulating parts also help tame water hammer, which cuts sharp banging noises. Strong plastics and soft rubber pieces can absorb vibration instead of passing it into the tank. Finally, adjustable flow and improved seals let users slow the refill, so the toilet works reliably while staying calm and nearly whisper-quiet.
Water Efficiency Features
During the period someone is trying to cut down on water use at home, the fill valve inside the toilet tank quietly becomes a very significant helper. A water efficient valve lets a person adjust the water level, so each flush uses just enough water, not extra that goes straight down the drain.
This is why many valves now work smoothly with high efficiency toilets that use around 1.28 gallons per flush. They refill the tank quickly and quietly while still giving a strong, reliable flush. In this way, comfort and savings stay in balance.
Some models also include an anti siphon design. This protects the home’s water from contamination while using very precise refill control, which prevents overfilling and helps lower monthly water bills.
Durability and Materials
Durability in a toilet fill valve starts with the materials inside it. Whenever someone wants a valve that truly lasts, they usually look for high-quality plastics like POM and PP. These plastics stand up well to constant water contact and daily use. Specialized rubber parts also matter, because they resist cracking, shrinking, and hardening over time.
As the design shifts from the inner body to the connection points, heavy-duty brass shanks become crucial. Brass handles pressure, movement, and minerals in the water better than many all-plastic parts. That strength helps prevent leaks and annoying surprises.
When all these corrosion-resistant materials work together, the valve runs quieter, controls water flow more smoothly, and keeps working for years with fewer replacements.
Installation Ease and Time
Sometimes the hardest part of fixing a toilet is not the parts, but the fear of a long, messy install. That is why installation ease and time matter so much whenever choosing a fill valve. At the point when the valve includes pre-installed washers and clear, step-by-step directions, the job feels less scary and more like a simple project.
Height-adjustable designs help the valve fit different tank sizes without cutting or guessing, and most adjust in minutes. Twist-lock or EZ-twist features let someone secure and fine-tune the valve quickly, without special tools. Kits that bundle mounting nuts, refill tubes, and clips keep people from scrambling for extra parts. Universal shanks and simple disconnects also make removal and future replacements faster and less stressful.
Warranty and Certifications
Even though a toilet fill valve looks like a small part, its warranty and certifications quietly reveal how much trust a person can place in it. A longer warranty, often several years, usually means the maker believes the valve will hold up to daily use. This support can ease worry, since defects and initial failures are typically repaired or replaced within that time.
Certifications work beside the warranty. Labels such as ASSE, CSA, ULC, FM, or UPC show the valve has passed strict tests. These tests check water pressure performance, leak resistance, and anti-siphon protection, which keeps dirty water from flowing back into the clean supply. At the time both a strong warranty and trusted certifications are present, the valve usually offers steady, safe performance.
