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10 Best Dual Flush Toilet Kit Options for 2025: Top Picks Reviewed
In the quest for efficient and eco-friendly plumbing solutions, the best dual flush toilet kits have emerged as a popular option. These kits allow users to conserve water and reduce their utility bills while providing the convenience of two flushing options—one for liquid waste and one for solid waste. With numerous options available on Amazon, we’ve sifted through to bring you the top 10 dual flush toilet kits in 2025. These kits are designed for easy installation and reliable performance.
1. Fluidmaster 550DMAV5 Fill Valve and Flapper Dual Flush Converter Kit
The Fluidmaster 550DMAV5 is a highly regarded dual flush converter kit that transforms standard toilets into dual-flush options effectively. Ideal for homeowners looking for an upgrade, this kit is easy to install and compatible with a variety of toilet types. Featuring two flush modes, it allows the user to choose a low volume flush for liquid waste and a higher volume for solids. Its robust design ensures durability and longevity.
Best For: Quick and easy installation on standard toilets.
Product Review:
The Fluidmaster 550DMAV5 boasts a straightforward installation process, making it a favorite among DIY enthusiasts. The instructions are clear, allowing you to switch out a standard system for a dual flush system in minimal time. Users appreciate the significant water savings after installation, with some reporting reductions in their water bills.
Pros:
- Easy installation
- Durable construction
- Reduces water usage
Cons:
- Might not fit all toilet models
- Some users report compatibility issues with older toilets
No products found.
2. Korky 2021PK Toilet Repair Kit
The Korky 2021PK is another impressive dual flush kit known for its high-quality components and efficient performance. This kit includes a toilet flapper and fill valve, ensuring that your dual flush system works flawlessly. The premium rubber construction provides a tight seal and prevents leaks, making it a reliable choice for homeowners who want to maintain their toilets.
Best For: Long-lasting, leak-proof performance.
Product Review:
Users have noted that Korky’s toilet repair kit helps to eliminate common toilet issues such as running water and leaks. The installation is intuitive, and the materials used are designed to withstand substantial wear and tear. Additionally, its ability to convert standard toilets into dual flush systems is highly praised.
Pros:
- Leak-proof design
- Compatible with most modern toilets
- Easy to install
Cons:
- Some users may find the instructions somewhat unclear
- Limited flush performance in older toilet models
- Everything you need in one complete kit - Fixes: running, noisy, no/slow refill and no/weak flush toilets.
3. TOTO THU300S Dual Flush Conversion Kit
TOTO is a renowned name in toilet fixtures, and their THU300S dual flush conversion kit lives up to its reputation. This product is specifically designed for TOTO toilets but is versatile enough to work on various brands. The kit promotes water conservation with a dual-flush mechanism, allowing an efficient flush for liquids and a more substantial flush for solids.
Best For: TOTO toilet owners wanting seamless upgrades.
Product Review:
This high-quality kit effectively catapults your existing toilet into dual flush territory, and users are consistently impressed with the performance. Its ergonomic design makes it easy to operate, and the build quality is exceptional, showcasing TOTO’s dedication to durability.
Pros:
- Exceptionally durable
- Great for TOTO toilets
- Easy to operate
Cons:
- May not fit non-TOTO models without modification
- Higher price point than competitors
- Dual Push Button Flush: Our water tank push buttons rods feature a manual dual flush system, The water tank push buttons rods feature a dual push button design, promoting water conservation and providing a more efficient toilet flush valve system.
- Premium Plastic Material: Made from high-quality plastic, these rods are rust-free and easy to clean,these toilet replacement parts are designed for simple and hassle-free installation, ensuring a quick upgrade to your toilet system.
- Perfect Fit for TOTO: Specifically designed to be compatible with TOTO water tanks, these push button rods are ideal for your TOTO toilet replacement parts, ensuring a seamless fit.
- Adjustable Length: Thewater tank push buttons rods offer a customizable length, making them versatile and suitable for various installations, including button into the wall to install toilet replacement setups.
- Reliable Performance: With a sturdy construction, our toilet flush valve ensures a smooth and consistent flushing experience, providing reliable performance over time.
4. Eastman 60260 Dual Flush Toilet Conversion Kit
The Eastman 60260 dual flush toilet conversion kit provides a budget-friendly solution for homeowners looking to implement a dual flush system without breaking the bank. The kit is straightforward to install and features adjustable flush settings for customizable water usage.
Best For: Budget-conscious homeowners seeking efficiency.
Product Review:
The Eastman 60260 shines with its user-friendly installation and effectiveness. Users appreciate the cost savings not only on installation costs but also on water bills. The adjustable features allow for flexibility based on personal preferences, making it a versatile addition to any bathroom.
Pros:
- Affordable price
- Adjustable flush settings
- Easy installation
Cons:
- May lack durability in comparison to pricier models
- Compatibility issues reported with certain toilet brands
- Enhanced Efficiency : By replacing outdated flapper and chain technology, the 3 Inch Toilet Valve Conversion offers a modern solution to water conservation, providing two flushing options that can reduce water usage by up to 50%. This upgrade not only helps save water but also eliminates the need for frequent maintenance, ensuring a more reliable and hassle-free toilet experience.
- Improved Performance : With its heavy-duty Dual Flush Valve, adjustable Fill Valve and Overflow Valve, and upgraded internal components, this Toilet Valve Conversion Kit enhances the flushing power of your toilet while minimizing the risk of clogs. By optimizing water flow from the tank to the bowl, it ensures smoother and more effective flushing, reducing the likelihood of inconvenient and unpleasant blockages.
- Cost-Effective Solution : Not only does the 3 Inch Dual Flush Toilet Conversion Kit provide immediate savings by reducing water consumption, but it also offers long-term financial benefits by continuing to save money on water bills over time. By avoiding the need for a complete toilet replacement, it offers a budget-friendly solution to modernizing your bathroom while minimizing unnecessary expenses.
- Compatible : Our 3 Inch Dual Flush product is compatible for 3 Inch toilets only. Determine your toilet size by viewing the discharge hole: if the hole resembles the size of a baseball or an orange, it's a 2 Inch toilet; if the hole resembles the size of a softball or grapefruit, it's a 3 Inch toilet.
- Also, you can measure the diameter of the discharge hole or flapper to determine if you have a 2 Inch or 3 Inch toilet.
5. Danco 80815 Dual Flush Kit
The Danco 80815 dual flush kit is an efficient way to reduce water waste while providing an easy upgrade for toilets. This kit includes all necessary parts for a complete conversion, making it ideal for DIY enthusiasts and homeowners alike.
Best For: Comprehensive upgrade for any toilet.
Product Review:
Many users are impressed with the simplicity of the Danco 80815. The kit comes with detailed instructions that provide guidance through a straightforward installation process. Once installed, it operates smoothly, offering a reliable dual flush option that effectively conserves water.
Pros:
- Comprehensive installation kit
- Smooth operation post-installation
- Affordable
Cons:
- Some users might face challenges during installation
- Flush performance may vary based on toilet models
- WATER-SAVING DUAL FLUSH TOILET REPAIR KIT: Converts a standard toilet into a dual flush toilet that saves water by reducing the amount of water used with each flush. The HYR451T combines two products that together will increase your toilet’s efficiency: HYR271 Dual Flush Converter and HC630 HydroClean fill valve
- COMPATIBILITY: The Dual Flush Converter works with standard 2 in. flush valves and requires a 10-inch minimum clearance from highest point of the flush valve opening to the inside of the tank lid. NOT COMPATIBLE with 1.28 GPF toilets, toilets with 3″ flush valves, or Mansfield Brand toilets
- FLUSH VALVE REPLACEMENT INSTALLATION TIP: Be sure to place the Dual Flush Converter directly in the center of your existing flush valve
- IMPORTANT INSTALLATION TIP: Do not remove overflow tube and flush valve from toilet tank; the Dual Flush Converter is a replacement to the existing flapper; slide the blue silicone dome gasket down the overflow tube, seating the gasket into the flush valve
- ELIMINATES TOILET LEAKS: Eliminates common leaky toilet problems due to a worn-out flapper, handle or faulty flapper chain; the permafit silicone seal is also chlorine and chemical resistant and will not warp
6. American Standard 7381280-400.075 Dual Flush Conversion Kit
American Standard’s 7381280-400.075 dual flush conversion kit is designed to maximize performance while being user-friendly. This dual flush kit is highly regarded by users for its efficient design and ease of installation, allowing for significant water savings.
Best For: Efficient water usage and easy installation.
Product Review:
American Standard has crafted a product that not only meets expectations but exceeds them. Users report that the dual flush option works efficiently and reliably without any leaks or flushing issues. The parts are made from durable materials that contribute to the overall longevity of the kit.
Pros:
- Excellent flushing power
- Durable construction
- User-friendly design
Cons:
- Higher price point
- Limited instructions for non-professionals
No products found.
7. Renovator’s Supply Manufacturing Dual Flush Toilet Tank Conversion
Renovator’s Supply provides a robust option with its Dual Flush Toilet Tank Conversion kit. This kit allows for a seamless transition to a dual flush system, ensuring that households can save water efficiently and conveniently.
Best For: Households looking for hassle-free upgrades.
Product Review:
Many reviews emphasize the effectiveness of the Renovator’s Supply kit in providing a reliable dual flushing option. Users appreciate the easy installation process, along with significant reductions in water usage. Moreover, the design is aesthetically pleasing, fitting well within modern bathroom decor.
Pros:
- Stylish design
- Reduces water waste
- Simple installation
Cons:
- Some users reported difficulty in adjusting the flush settings
- Compatibility issues may arise with older toilet models
No products found.
8. Kohler K-52430-CP Dual Flush Valve Kit
Kohler, a leader in bathroom innovation, offers the K-52430-CP Dual Flush Valve Kit, which allows users to upgrade their existing toilets efficiently. Designed for compatibility and performance, this kit ensures users enjoy a smooth flush experience.
Best For: Kohler toilet owners looking for reliable upgrades.
Product Review:
The Kohler K-52430-CP stands out for its durability and ease of use. Feedback indicates that users appreciate the superior performance of the dual flush valve, which operates seamlessly. The installation process is straightforward, guided by detailed instructions, making it accessible even for beginners.
Pros:
- Excellent flushing mechanism
- Durable parts
- Straightforward installation
Cons:
- Price may be higher compared to generic options
- Limited compatibility with non-Kohler toilets
−$4.00
- Efficient Dual-Flush System: The toilet flush valves kit features a dual-flush mechanism designed for two-piece toilet tanks, providing an efficient and customizable flushing experience while conserving water.
- Durable Materials: Crafted from high-quality, corrosion-resistant materials, our toilet repair kit is built to withstand daily use and ensure longevity, giving you peace of mind in any restroom setting.
- Easy Installation: The toilet flush valve replacement kit comes with clear instructions for a hassle-free installation process. You can quickly restore your toilet's functionality without the need for professional assistance.
- Packing List: 1 x 2-inch dual flush valves kit; 1 x 38mm toilet top push button; 1 x installation or remove special tool.
- Satisfaction Guaranteed: We stand behind our products with a reliable customer support service and a satisfaction guarantee, ensuring you have all the support you need for your toilet flush valve replacement kit.
9. Genova Products 90879 Dual Flush Converter
The Genova 90879 dual flush converter is a simple yet effective tool for those looking to save water. This kit transforms existing toilets into dual flush systems efficiently, helping users manage their water bills effectively.
Best For: Simple and effective water-saving upgrades.
Product Review:
Users note that the Genova 90879 is a straightforward addition that brings forth impactful water savings. Installation is user-friendly, making it a popular choice among DIYers. It effectively provides both low and high volume flush options.
Pros:
- Easy to install
- Promotes water conservation
- Budget-friendly
Cons:
- Some users reported inconsistent flush performance
- Not suitable for all toilet models
10. Oatey 43410 Dual Flush Conversion Kit
The Oatey 43410 is a versatile dual flush conversion kit designed for users looking to upgrade without the complexities. This kit includes all necessary components for a functional dual flush system that minimizes water usage significantly.
Best For: No-fuss installations with great results.
Product Review:
Reviews indicate that the Oatey 43410 is straightforward and reliable. The installation process is uncomplicated, making it ideal for non-professionals. Users appreciate the performance variety, using low flush for liquids and a stronger flush for solids without issue.
Pros:
- Comprehensive parts included
- Performance you can rely on
- Easy to install
Cons:
- Might not fit every toilet model
- Users have faced minor durability issues over time
- Enhanced Efficiency : By replacing outdated flapper and chain technology, the 3 Inch Toilet Valve Conversion offers a modern solution to water conservation, providing two flushing options that can reduce water usage by up to 50%. This upgrade not only helps save water but also eliminates the need for frequent maintenance, ensuring a more reliable and hassle-free toilet experience.
- Improved Performance : With its heavy-duty Dual Flush Valve, adjustable Fill Valve and Overflow Valve, and upgraded internal components, this Toilet Valve Conversion Kit enhances the flushing power of your toilet while minimizing the risk of clogs. By optimizing water flow from the tank to the bowl, it ensures smoother and more effective flushing, reducing the likelihood of inconvenient and unpleasant blockages.
- Cost-Effective Solution : Not only does the 3 Inch Dual Flush Toilet Conversion Kit provide immediate savings by reducing water consumption, but it also offers long-term financial benefits by continuing to save money on water bills over time. By avoiding the need for a complete toilet replacement, it offers a budget-friendly solution to modernizing your bathroom while minimizing unnecessary expenses.
- Compatible : Our 3 Inch Dual Flush product is compatible for 3 Inch toilets only. Determine your toilet size by viewing the discharge hole: if the hole resembles the size of a baseball or an orange, it's a 2 Inch toilet; if the hole resembles the size of a softball or grapefruit, it's a 3 Inch toilet.
- Also, you can measure the diameter of the discharge hole or flapper to determine if you have a 2 Inch or 3 Inch toilet.
Whether you’re looking to save water, manage your bills better, or ease the environmental impact of your home, the best dual flush toilet kits available on Amazon in 2025 are a convenient solution. Each of these products offers unique features that cater to varying needs, making it easier than ever to convert your bathroom for better efficiency.
Buying Guide for Dual Flush Toilet Kits
Dual flush toilet kits are an excellent choice for those looking to conserve water and improve the efficiency of their bathroom. With their dual flushing system, these toilets offer two flushing options—one for liquid waste and another for solid waste—helping to reduce water usage. Here’s what to consider when purchasing a dual flush toilet kit:
1. Understanding Dual Flush Mechanism
- Types of Flushes:
- Full Flush: Typically uses 1.6 gallons per flush (gpf) for solid waste.
- Reduced Flush: Generally uses 0.8 to 1.2 gpf for liquid waste.
- Efficiency: Look for toilets that meet WaterSense criteria, which indicates they use less water while maintaining performance.
2. Toilet Kit Components
- Flush Valve: Check the size and type of the flush valve. A larger valve can improve flushing efficiency.
- Tank Size: Ensure that the tank can accommodate the dual flush mechanism.
- Button Setup: Determine if you prefer a side-mounted or top-mounted button configuration.
3. Installation Requirements
- Compatibility: Ensure the kit is compatible with your existing toilet model.
- Installation Difficulty: Some kits are DIY-friendly, while others may require a plumber. Check for included instructions and necessary tools.
- Space Consideration: Ensure that there is enough space in your bathroom for the kit installation.
4. Water Efficiency
- Water Usage: Aim for toilets that consume 1.28 gpf or less for maximum savings on your water bill.
- Flushing Action: Read reviews or look for demonstration videos on how effectively the flushes operate.
5. Quality and Durability
- Materials: Look for kits made from high-quality materials such as ceramic or durable plastics.
- Warranty: Check the warranty information. A longer warranty can often indicate a more reliable product.
6. Design and Aesthetics
- Color and Style: Choose a color that matches your bathroom decor. White is common, but other colors may be available.
- Ergonomics: Ensure the flush buttons are easy to reach and use, especially for children or those with mobility issues.
7. Additional Features
- Noise Level: Some kits have quieter flushing mechanisms. Consider this if noise is a concern.
- Self-Cleaning Technology: Some advanced models come with self-cleaning features to maintain hygiene.
8. Price Range
- Budget: Dual flush kits can vary widely in price. Determine your budget and find options that fit within it.
- Long-Term Savings: Consider not just the initial cost, but also long-term water savings and potential tax rebates for eco-friendly plumbing upgrades.
9. Customer Reviews and Recommendations
- Research: Check customer reviews and ratings on reliable retailer websites to gauge user satisfaction.
- Brand Reputation: Opt for brands known for their reliability and good customer service.
10. Installation Assistance
- Guidance Options: If you are not comfortable installing the kit yourself, consider hiring a plumber. Some retailers offer installation services as well.
Conclusion
When shopping for a dual flush toilet kit, understanding your needs and the specifications of the kit can lead to improved water efficiency and hygiene in your bathroom. Assess each factor carefully to ensure you select the right kit for your home. Happy shopping!
