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10 Best Toilet Repair Kits 2025 in the United States

#1

Winner

9.8 score

Fluidmaster K-400H-039 High Performance Toilet Fill Valve with 2-Inch Adjustable Toilet Flapper Kit

The Fluidmaster K-400H-039 High Performance Toilet Fill Valve with 2-Inch Adjustable Toilet Flapper Kit is designed to enhance the performance of 2-inch flush valve toilets. One of its standout features is the adjustable fill valve, which allows users to control water levels in the tank and bowl, ensuring full customization for their needs. The included PerforMAX water-saving flapper is a great addition that helps reduce water usage per flush, making it environmentally friendly and cost-effective in the long run.

Rating
9.8
Chosen by1,100
Compatibility
Ease of Installation
Durability

Most important from
2397 reviews

Compatibility
The adjustable height feature allows the fill valve to fit perfectly in the toilet tank.
Ease of Installation
Installation was straightforward and quick, taking under 30 minutes without professional help.
Durability
The materials used feel sturdy and durable, promising longevity with no leaks or issues so far.
Water Efficiency
The Fluidmaster K-400H-039 has significantly improved my toilet's efficiency and functionality.
#2
9.6 score

KOHLER Silent Fill Toilet Valve Kit, Genuine Part GP1138930, Adjustable with Multiple Fill-Rate Inserts

The KOHLER Silent Fill Toilet Valve Kit (GP1138930) is a genuine replacement part designed to work seamlessly with Kohler Class 5 toilets. One of the standout features is its Silent Fill Technology, which ensures that the toilet tank fills quietly, providing a more pleasant experience.

Rating
9.6
Compatibility
Components Included
Ease of Installation

Most important from
4902 reviews

Compatibility
Perfect replacement, no leaks, worked right out of the box!
Components Included
Comes with a variety of color-coded water restrictors to adjust flow rates.
Ease of Installation
The valve is easy to install and adjust, with only two main adjustments needed.
Durability
Nearly identical to 25-year-old Kohler valve, highlighting amazing longevity.
Water Efficiency
Comes with a variety of color-coded water restrictors to adjust flow rates.
#3
9.5 score

Fluidmaster K-400H-021-P8 PerforMAX 2-Inch Everything Toilet Repair Kit, Multicolor

The Fluidmaster K-400H-021-P8 PerforMAX 2-Inch Everything Toilet Repair Kit is designed to be a comprehensive solution for fixing a toilet. It includes a fill valve, flush valve, gasket, hardware, tools, clip, and locknut, which means you have all the necessary components in one package. This can save time and effort as you don’t need to make multiple trips to the store.

Rating
9.5
Compatibility
Components Included
Ease of Installation

Most important from
1325 reviews

Compatibility
Everything fit perfectly and worked like a charm.
Components Included
The tools included in the kit are very handy and simplified the task of installation.
Ease of Installation
This kit likely saved me a bunch of money and was super easy to install.
Durability
The kit is definitely worth the value with good quality components.

Top 10 Best Toilet Repair Kits 2025 in the United States

#1

Winner

9.8 score

Fluidmaster K-400H-039 High Performance Toilet Fill Valve with 2-Inch Adjustable Toilet Flapper Kit

Compatibility: 2-inch flush valve toilets
Components Included: PerforMAX Fill Valve, 2-Inch Flapper
Ease of Installation: Suitable for DIY and professionals
Durability: Solid frame, 7-year warranty
Water Efficiency: PerforMAX water-saving flapper

Chosen by 1100 this week

KOHLER Silent Fill Toilet Valve Kit, Genuine Part GP1138930, Adjustable with Multiple Fill-Rate Inserts

Compatibility: Kohler Class 5 toilets, grey shanks
Components Included: Multiple fill-rate inserts
Ease of Installation: Relatively easy to install
Durability: Plastic and metal construction
Water Efficiency: Water-efficient choice

Fluidmaster K-400H-021-P8 PerforMAX 2-Inch Everything Toilet Repair Kit, Multicolor

Compatibility: Most toilets with 2-inch outlet
Components Included: Fill Valve, Flush Valve, Gasket, Hardware
Ease of Installation: User-friendly
Durability: Plastic
Water Efficiency: Designed for water efficiency

Fluidmaster 400AKR Universal All in One Toilet Repair Kit for 2-Inch Flush Valves, Easy Install

Compatibility: Most 2-inch flush valve toilets
Components Included: Fill and flush valves
Ease of Installation: 10 minutes or less
Water Efficiency: High-performance water-saving flapper

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

Compatibility: Kohler Class 5 toilets
Components Included: Silent Fill Valve Kit, inserts
Ease of Installation: straightforward
Durability: engineered by Kohler for performance
Water Efficiency: adjustable inserts for water usage

Danco 10879 One Toilet Perfect Seal Wax Ring & Zero Cut, Mess Install, Complete Kit Includes Bolts and Adapters, 1-Pack, blue

Compatibility: Works with flanges above or below floor
Components Included: All necessary bolts and adapters
Ease of Installation: Straightforward and customizable
Durability: 3 times stronger seal

American Standard 7381657-200.0070A Vormax Toilet Flapper Assembly, Black

Compatibility: Vormax models
Components Included: dual flappers, silicone seals, teeter bar
Ease of Installation: straightforward
Durability: long-lasting

TOTO TSU99A.XR Fill Valve, Blue

Compatibility: adjustable for all TOTO tanks
Components Included: valve, refill tube, clamp, washer, nut
Ease of Installation: straightforward
Durability: stainless steel and brass
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Buying Guide for the Best Toilet Repair Kits

Choosing the right toilet repair kit can save you time, money, and the hassle of dealing with a malfunctioning toilet. A good repair kit will help you fix common issues such as leaks, running water, or a weak flush. When selecting a toilet repair kit, it's important to consider the specific components included, the compatibility with your toilet model, and the ease of installation. Here are some key specifications to look for and how to choose the best one for your needs.
CompatibilityCompatibility refers to whether the repair kit will work with your specific toilet model. This is important because toilets come in different shapes and sizes, and not all repair kits will fit every toilet. To navigate this, check the product description for information on which toilet models the kit is compatible with. If you have a standard toilet, most universal kits will work. However, if you have a more unique or older model, you may need to look for a kit specifically designed for that type. Knowing your toilet's brand and model can help guide you to the right kit.
Components IncludedThe components included in a toilet repair kit can vary, but common parts are fill valves, flush valves, flappers, and gaskets. This is important because different toilet issues require different parts to fix. For example, a running toilet might need a new flapper, while a weak flush could require a new fill valve. To navigate this, identify the specific problem with your toilet and ensure the kit includes the necessary parts to address it. If you're unsure, a comprehensive kit with multiple components can be a good choice as it covers a range of potential issues.
Ease of InstallationEase of installation refers to how simple it is to install the repair kit without professional help. This is important because a kit that is difficult to install can lead to frustration and potentially more damage to your toilet. To navigate this, look for kits that come with clear instructions and possibly even video tutorials. Kits labeled as 'easy to install' or 'DIY-friendly' are generally designed for homeowners with little plumbing experience. If you are not confident in your DIY skills, choosing a kit with detailed instructions and customer support can be very helpful.
DurabilityDurability refers to how long the parts in the repair kit will last once installed. This is important because durable parts will save you from having to make frequent repairs. To navigate this, look for kits made from high-quality materials such as stainless steel or durable plastic. Reading customer reviews can also give you an idea of how long the parts typically last. If you want a long-term solution, investing in a kit known for its durability is a wise choice.
Water EfficiencyWater efficiency refers to how well the repair kit helps your toilet use water efficiently. This is important because an efficient toilet can save you money on your water bill and is better for the environment. To navigate this, look for kits that are labeled as 'water-saving' or 'high-efficiency.' These kits often include features like adjustable fill valves that allow you to control the amount of water used per flush. If conserving water is a priority for you, choosing a water-efficient kit can be beneficial.

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