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A single leaky toilet can waste thousands of gallons of water per month. That’s bad for the environment—and hard on the wallet, to say nothing of the mess that’s left behind or the amount of money a plumber will charge just to walk through the front door.
Fortunately, fixing a leak with an inexpensive toilet repair kit is an easy DIY job. Any of the top-quality toilet repair kits below will put the lid on that hissing—and the water waste.
- BEST OVERALL: Korky 4010 QuietFILL Complete Toilet Repair Kit
- BEST BANG FOR THE BUCK: Fluidmaster 507AK Flush Valve Toilet Repair Kit
- BEST UNIVERSAL: Fluidmaster 400AKR All-in-One Toilet Tank Repair Kit
- BEST FILL VALVE & FLAPPER: Fluidmaster 400CR Fill Valve and 2-Inch Flapper Kit
- BEST FILL VALVE ONLY: Danco HC660 HydroClean Water-Saving Toilet Fill Valve
- BEST TOILET TANK: Fluidmaster 6102 Tank-to-Bowl Bolt and Gasket Kit
- BEST SILENT-FILL: Korky 528MP QuietFILL Platinum Fill Valve
- BEST WATER-SAVING: Danco HYR460 Water-Saving Toilet Total Repair Kit
How We Chose the Best Toilet Repair Kits
In our research, we found that the most popular toilet repair kits are usually determined by type, included fixtures, materials used, and other special features.
Our top picks are mostly universal toilet repair kits, capable of fixing any toilet type with issues involving the toilet fill valve and flapper, the toilet tank, or the silent fill valve. These toilet kits encourage water-saving repairs so users can flush toilets without the need for constant maintenance.
Most of our selections are made with durable and corrosion-resistant Microban, while others are made of rubber, ABS or regular plastic, stainless steel, brass, or chlorazone constructions. Some include user-friendly features like cleaning jets, dual-flush systems, QuietFILL valves, mini valves for adjusting water levels and use, and even cleaning jets to prevent bacteria and hard water deposits from manifesting in the toilet tank.
Our Top Picks
The following kits are manufactured by companies with long, respected histories of designing quality toilet repair products and feature durable materials, advanced technologies, and excellent value.
Best Overall
Korky 4010 QuietFILL Complete Toilet Repair Kit
This complete universal kit from Korky is great for anyone looking to do a full repair on a leaky toilet. With a fill valve, flapper, gasket flush valve, and all necessary hardware, the 4010 includes all the essential parts. The flapper is made from longest-lasting red rubber that resists chlorine, bacteria, city water treatment, hard water, and well water. But what sets this universal kit apart from the pack is its QuietFILL valve, which is notably quieter than other fill valves. With just a few basic tools required for installation, the toilet will be up and running—softly!
Product Specs
- Type: Universal
- Materials:Chlorine-resistant rubber
- Suitable for necessary repairs: Yes
Pros
- Full repair kit; includes a toilet fill valve, flapper, gasket flush valve, and necessary hardware
- Materials are capable of resisting bacteria as well as hard water and chlorine deposits
- QuietFILL valve is noticeably quieter than other valves on the market
Cons
- Can be tricky to install for some users; may not fit some standard toilets
Get the Korky 4010 toilet repair kit at Amazon, Lowe’s, or The Home Depot.
Best Bang for the Buck
Fluidmaster 507AK Flush Valve Toilet Repair Kit
There’s no need to fret over the high cost of a toilet repair. The low-cost, high-quality Fluidmaster 507AK flush valve repair kit—which includes a durable flush valve, a replacement gasket, an adjustable Microban flapper, and all necessary hardware—will handle most common toilet repairs. The adjustable flapper is particularly impressive and provides a powerful flush every time. This flush valve repair kit will work with most major toilet brands and features easy-to-follow installation instructions with no tools required.
Product Specs
- Type:Fill valve and flapper
- Materials: Microban, plastic, and metal
- Suitable for necessary repairs: Yes
Pros
- Full flush valve repair kit; includes flush valve, replacement gasket, adjustable flapper, and necessary hardware
- Microban material resists corrosion and bacteria; great choice for long-term use
- Compatible with most major toilet brands for ease of installation and use
- Includes an instruction manual; no additional tools are required while installing
Cons
- DIYers may have a tough time fitting the flush valve gasket into the toilet
Get the Fluidmaster 507AK flush valve repair kit at Amazon, The Home Depot, or Menards.
Best Universal
Fluidmaster 400AKR All-in-One Toilet Tank Repair Kit
Fluidmaster packs the essentials to complete maintenance in this 400AKR toilet tank repair kit, including a flapper, fill valve, gasket, and hardware. The kit even comes with a universal fit tank lever just in case yours has snapped off. Other features include Fluidmaster’s patented PeroMAX 2 water-saving flapper—it boasts an adjustable dial that allows you to adjust your flush performance and water usage. This toilet tank repair kit is also constructed out of durable Microban, which resists corrosion to improve durability. This kit fits most toilets with a fill valve that can be adjusted from 9 inches to 14 inches.
Product Specs
- Type: Universal
- Materials: Microban, plastic, and metal
- Suitable for necessary repairs: Yes
Pros
- Includes a PeroMAX 2 flapper, toilet fill valve, gasket, universal tank lever, and necessary hardware
- Adjustable dial can be tweaked to alter the water usage and flush performance
- Microban construction resists corrosion and bacteria; great choice for long-term use
- Fill valve can be adjusted to accommodate 9- to 14-inch fill valve openings
Cons
- This kit may not accommodate any 3-bolt toilet models; caution advised
Get the Fluidmaster 400AKR toilet tank repair kit at Amazonor The Home Depot.
Best Fill Valve u0026 Flapper
Fluidmaster 400CR Fill Valve and 2-Inch Flapper Kit
A toilet that gets a lot of traffic can be fixed right with this tough wearing and sturdy valve and flapper kit from FluidMaster. With quality materials designed to resist the rigors of toilet tanks, the 400CR will keep a toilet running smoothly for many years. The toilet valve is made of corrosion-resistant material and fills much more quickly than older valves. The 400CR includes Fluidmaster’s 501 flapper, which is made of microban, a type of rubber that resists chlorine and bacteria.
Product Specs
- Type: Fill valve and flapper
- Materials: Rubber, plastic, and metal
- Suitable for necessary repairs: Yes
Pros
- Comes with toilet fill valve and flapper to improve the overall functionality of the toilet
- Corrosion-resistant Microban can stand up to everyday or frequent use
- Universal design can accommodate most toilet models currently available
Cons
- Some users have reported that the installation directions included can be hard to follow
Get the Fluidmaster 400CR toilet repair kit at Lowe’sor The Home Depot.
Best for Fill Valve
Danco HC660 HydroClean Water-Saving Toilet Fill Valve
Is there such a thing as a smart toilet fill valve? The HC660 boasts such a range of useful features, it might make anyone think so. Its water jets keep your tank clean by stirring up sediment and rust deposits, while a mini valve fine-tunes the tank refill level to save water. In the event of a leak, the HC660 will emit a high-pitched noise. It even bypasses the toilet’s shut-off valve, and there’s a float lock that can be set to quickly shut off the tank’s water supply for repairs.
Product Specs
- Type: Fill valve only
- Materials: ABS plastic
- Suitable for necessary repairs: No
Pros
- Integrated water jets stir up sediment and rust deposits to prevent damage and wear and tear
- Water-saving toilet repair kitfor the eco-friendly household; mini valve adjusts to desired fill level
- Leak-prevention technology; high-pitched noise alerts the user to potential malfunctions or leaks
- Allows user to bypass the shut-off valve or shut off the water supply during maintenance
Cons
- Cannot replace many of the toilet’s current internal fixtures; suitable for fill valve repairs only
- ABS plastic is less durable than comparable materials; may crack or break over time
Get the Danco HC660 toilet repair kit at Amazon, Ace Hardware, Lowe’s, or The Home Depot.
Best Toilet Tank
Fluidmaster 6102 Tank-to-Bowl Bolt and Gasket Kit
That rubber ring between the toilet tank and the bowl is critical for keeping water in a toilet tank. Fluidmaster’s tank-to-bowl bolt and gasket kit brings a durable rubber ring that keeps that vital connection watertight. And because the two bolts holding everything together are common leak zones, Fluidmaster uses brass bolts with thick rubber gaskets, making sure the water in a toilet’s tank stays right where it belongs.
Product Specs
- Type: Toilet tank
- Materials: Rubber, plastic, stainless steel, and brass
- Suitable for necessary repairs: No
Pros
- Durable rubber ring provides a durable seal to keep all water inside the toilet tank
- Includes 2 stainless steel bolts, 4 brass and plastic gaskets, and 2 nuts for secure installation
- This kit includes durable hardware that’s suitable for long-term use
Cons
- Cannot replace many of the toilet’s current internal fixtures; suitable for toilet tank repairs only
- Should not be used with Kohler or Gerber toilet models
Get the Fluidmaster 6102 toilet repair kit at Amazonor Lowe’s.
Best Silent-Fill
Korky 528MP QuietFILL Platinum Fill Valve
Bring near silence to any bathroom by replacing a standard fill valve with this innovative Korky model. It boasts easy tool-free installation, thanks to Korky’s twist- lock technology. The 528MP adjusts from 7¾ inches to 12½ inches, making it compatible with a wide range of tank sizes. A twist-lock adjuster makes changing the valve length an easy task, while refill controls allow you to alter the tank and bowl’s water levels for efficient performance.
Product Specs
- Type: Silent fill
- Materials: Plastic and rubber
- Suitable for necessary repairs: No
Pros
- Adjusts from 7¾ inches to 12½ inches; accommodates most tank sizes
- Twist-lock adjuster allows for quick adjustments to the valve length
- Adjustable tank and bowl’s refill water levels; acts as a water-saving toilet repair kit
- Simple, tool-free installation process; its twist-locking technology installs quickly
Cons
- Cannot replace many of the toilet’s current internal fixtures; suitable for fill valve repairs only
- Water-level adjuster can take some elbow grease to tweak
Get the Korky 528MP toilet repair kit at Amazon, Ace Hardware, Lowe’s, The Home Depot, or Tractor Supply Co.
Best Water-Saving
Danco HYR460 Water-Saving Toilet Total Repair Kit
Shave dollars off a water bill with this water-saving Danco toilet repair kit. This inexpensive setup converts standard toilets into a two-button dual-flush system, allowing you to reduce your water consumption by up to 70 percent. The HydroRight dual-flush toilet works with standard toilets with at least 10 inches of clearance from the flush valve to the tank lid. Other features include tank-cleaning jets that operate with each flush and a leak detector that emits an alert in the event of a leak.
Product Specs
- Type: Universal/water saving
- Materials: Plastic, rubber, and metal
- Suitable for necessary repairs: Yes
Pros
- Converts traditional toilets into a 2-button dual-flush system; reduces water consumption by 70 percent
- Allows for 10 inches of clearance from the flush valve and tank lid
- This kit’s tank-cleaning jets prevent hard water and chlorine buildup
- Leak detector alerts the user in the event of a malfunction
Cons
- May require professional help to install; this system can be complex
- Some users have reported a little more water usage than desired
Get the Danco HYR460 water-saving toilet repair kit at Amazon, Lowe’s, or The Home Depot.
Jump to Our Top Picks
What to Consider When Buying a Toilet Repair Kit
Before buying a toilet repair kit, shoppers may want to identify the components that need replacing first. They may also want to determine whether the kit will be for a necessary repair or a full upgrade. Here’s a closer look at several considerations shoppers will want to keep in mind.
Types of Toilet Repair Kits
There’s a wide variety of toilet repair kits. Some include only the specific parts required to complete a particular type of repair, while others provide every part you need for a total upgrade. Here’s what you can expect to find in the most common toilet repair kits.
Universal
A universal kit gives you everything you need to repair a leaky or malfunctioning standard toilet, including the fill valve, flapper, refill tube, and all the hardware that goes with it. Even if you only notice one issue with your toilet, if multiple parts appear dirty and corroded, you’re wise to replace all parts and hardware. After all, a toilet’s replaceable parts will only last 4 to 5 years, so it may make sense to replace everything at once rather than wait for each part to fail. This can ultimately save you time, money, and the added inconvenience of a toilet that repeatedly goes out of service.
Universal kits will fit toilets with 2-inch flush valves, which covers the majority of both newer low-flow models and older commodes. Just be sure to check the size of your flush valve—the drain opening located at the bottom of the tank— to confirm that 2 inches is the right size. Given that these kits include a full set of replacement parts, purchase one if you plan on completing a toilet overhaul.
Fill Valve and Flapper
While there are good reasons to purchase a universal kit and replace all the components in the tank, you may not have the time, money, or inclination to do that right now. Replacing the refill tube, for example, requires removing the entire tank—maybe not on the top of your to-do list.
Replacing the flapper and the fill valve is often all that’s needed to fix a leak. The flapper is the rubber plug that drops against the drain hole in the bottom of the tank. The fill valve, located on the left side of the tank, regulates the water coming in from the supply line, shutting off the water when the tank and bowl have reached their fill lines. If your refill tube is functioning correctly, buy a fill valve and flapper kit to tackle the problem. Just make sure the new fill valve is the same height as the old one. You’ll need to replace the old flapper with an identical one to ensure it will fit the fill tube, otherwise you’ll need to replace the fill tube as well.
Fill Valve
Sometimes the culprit in your leaky toilet is merely a faulty fill valve incorrectly regulating the level of water coming in from the supply line. If you flush the toilet and the bowl finishes filling before the tank, your fill valve is operating improperly, wasting water and costing you money.
Fill valves can also become clogged. If your toilet takes too long to fill and the flapper is working correctly, it is likely due to a clogged fill valve. If the other components in your toilet’s tank are in good condition, purchase a new fill valve to replace the old one. Again, make sure the new fill valve is the same height as the old valve.
Toilet Tank
A toilet tank repair kit includes the large rubber gasket and bolts that create a watertight connection between the bowl and the tank. The rubber gasket sits between the tank and the bowl. The bolts that connect the tank to the bowl put enough tension on the rubber gasket to create a watertight seal.
If the gasket fails, water will begin to leak from that seal. When that happens, you’ll need to replace the gasket and bolts. While most gaskets are 2 inches in diameter, make sure to check the size before purchasing a replacement.
Silent Fill
Most toilets hiss after every flush until the tank and bowl fill. Though this doesn’t indicate a problem, it’s not the most pleasant sound on the planet, so if you want to eliminate it, replace the existing fill valve with a silent one. Silent fill valve kits typically cost a little more than standard fill valves.
Water Saving
Water-saving toilet repair kits work by reducing the amount of water used with each flush. Water saver kits convert an existing toilet into a two-button dual-flush toilet. One button uses less water and is designed for liquid only flushes, while the second button uses more water and flushes solid waste.
Necessary Repairs
A necessary repair gets an out-of-service toilet up and running again. This type of remedy might involve replacing a leaky flapper or a clogged fill valve. Make sure you buy the right kit to complete the repair, as some kits don’t include all toilet repair parts.
An efficiency-related repair makes improvements to toilets that are functioning correctly. Water-saving kits and silent operation kits aren’t necessary repairs, but offer benefits that make the upgrade worth the initial investment. A silent operation kit that replaces the fill valve eliminates the annoying sound of a refilling toilet. A dual-flush which allows your toilet to perform a half-flush or full-flush can save your household water consumption by as much as 70 percent.
Kit Flexibility
Toilet repair kits come in a variety of sizes. Some may come with one part, while others include every component in your tank. Although you may only need one part to repair your toilet, it might make sense to purchase a full kit. Most toilets will long outlast the flappers, fill valves, and refill tubes inside them, which means you will eventually have to replace each part.
Universal kits, which include all replacement parts, are much more affordable than buying each piece separately. Plus, when a toilet goes out of service, it’s convenient to have the necessary parts on hand, saving you a trip to the home improvement store.
You might also decide that given the work involved in draining and removing a toilet tank, it makes sense to replace all the old parts in one shot rather than wait for each piece to fail. With that in mind, you may want to opt for a kit that includes more replacement parts than you need.
Budget
How much you can afford to spend on your toilet repair can dictate what kit to buy. Some budget kits, with parts made from inferior materials, may get the job done but not last very long, while expensive kits, with parts made of more durable materials, will cost more upfront but may last longer.
If your budget is tight, the best approach might be to purchase a kit that only includes the necessary parts to get your toilet back into proper working order. If you can afford it, an efficiency-related kit will save you money in the long run by reducing water usage.
FAQs
With so many options on the market, figuring out which toilet repair kit is right for you can be confusing. Answers to the most common questions are addressed below.
Q. How can I figure out the problem with my toilet?
Remove the lid on the tank and examine the parts. Check to see if any parts are worn or damaged. Flush the toilet with the tank cover removed and attempt to identify potential leaks. Check the floor around the toilet for any puddles that could indicate a leak.
Q. Can I reduce the noise my toilet makes with a toilet repair kit?
Yes. By purchasing a silent fill valve, you can significantly reduce the amount of noise a toilet makes when refilling the bowl and tank.
Q. How long should a toilet fill valve last?
Toilet fill valves typically last between 4 and 5 years on average before the seals and washers begin to fail.
Q. How do I know if my toilet fill valve is bad?
A failed fill valve emits a loud, shrill noise which indicates a leak. It may also cease to float properly, preventing the water from shutting off or causing incorrect water levels in the toilet and tank.
Why Trust Bob Vila
Bob Vila has been America’s Handyman since 1979. As the host of beloved and groundbreaking TV series including “This Old House” and “Bob Vila’s Home Again,” he popularized and became synonymous with “do-it-yourself” home improvement.
Over the course of his decades-long career, Bob Vila has helped millions of people build, renovate, repair, and live better each day—a tradition that continues today with expert yet accessible home advice. The Bob Vila team distills need-to-know information into project tutorials, maintenance guides, tool 101s, and more. These home and garden experts then thoroughly research, vet, and recommend products that support homeowners, renters, DIYers, and professionals in their to-do lists.