Best Flush Valve Kits – EcoFriendlyRobots

Looking for the best flush valve kits to fix your leaky toilet? We’ve curated a list of 10 top-rated, easy-to-install, and water-saving options to make your repair hassle-free.

Fixing a leaky toilet can be a hassle, but with the right flush valve kit, it’s a breeze. We’ve gathered the best options to save you time, water, and money.

These kits are easy to install, durable, and water-saving. Whether you need a quick fix or a complete overhaul, we’ve got you covered.

List of Top 10 Flush Valve Kits

Title	Best For	Price
Fluidmaster K-400H-039 High Performance Toilet Fill Valve with 2-Inch Adjustable Toilet Flapper Kit	This Fluidmaster K-400H-039 kit is perfect for anyone who wants to fix a leaky toilet or save water. It’s easy to install and works great for most tanks.	View on Amazon (paid link)
Sloan R-1005-A Regal Urinal Diaphragm Rebuild Kit, 1.0 GPF – For use with Sloan Regal Flushometers – Includes Diaphragm, Handle Repair Kit, Vacuum Breaker Repair Kit & Tailpiece O-Ring, 3317005	This Sloan R-1005-A Regal Urinal Diaphragm Rebuild Kit is perfect for anyone who wants to fix their Sloan Regal flushometer and save water. It’s easy to use and works great for commercial restrooms.	View on Amazon (paid link)
Fluidmaster 507AKP7 PerforMAX Universal High Performance 2-Inch Toilet Flush Valve Repair Kit with Gasket and Bolts	This Fluidmaster 507AKP7 PerforMAX Universal High Performance 2-Inch Toilet Flush Valve Repair Kit is perfect for anyone who wants to fix a leaky toilet and save water. It’s easy to install and works with any 2-inch flush valve in a two-piece toilet.	View on Amazon (paid link)
Fluidmaster K-540A-015 Universal 3-Inch Toilet Flush Valve Repair Kit with Toilet Tool Multicolor	This 3-inch toilet flush valve repair kit is perfect for anyone who wants to fix a leaky toilet tank and save water. It’s easy to install and works with most 3-inch flush valves, making it a great choice for DIY repairs.	View on Amazon (paid link)
Fluidmaster K-507A-008 Universal 2-Inch Adjustable Toilet Flush Valve Repair Kit with Toilet Tool Multicolor	This toilet repair kit is perfect for anyone with a leaky toilet tank. It’s easy to install and saves water, making it ideal for DIY fixes.	View on Amazon (paid link)
Fluidmaster 400AKRP10 Universal, All In One, Complete Toilet Tank Repair Kit For 2-Inch Flush Valve Toilets	This toilet repair kit is perfect for anyone with a 2-inch flush valve toilet who wants to fix leaks, save water, and restore their toilet’s performance quickly and easily. It’s ideal for DIYers looking for a simple, all-in-one solution.	View on Amazon (paid link)
Kohler Genuine Part 1083980 3″ Toilet Canister Flush Valve Kit	This Kohler Genuine Part 1083980 is perfect for homeowners with a Kohler Cimarron toilet tank (model K-4634). If your toilet needs a 3″ canister flush valve, this kit is the exact replacement you need.	View on Amazon (paid link)
KOHLER 3″ Toilet Flush Valve Kit, Black, Compatible with Kohler Wellworth toilets, 3″ Canister with a 3″ Outlet, GENUINE PART 1069722	This KOHLER 3″ Toilet Flush Valve Kit is perfect for homeowners with Kohler Wellworth toilets. It’s easy to install and fixes common flushing issues.	View on Amazon (paid link)
Fluidmaster 555CRP8 Universal PerforMAX 5 Minute Toilet Flush Valve Repair Kit 2 In.	This Fluidmaster 555CRP8 kit is perfect for anyone who wants to fix a leaky toilet quickly and easily. It’s great for saving water and money while avoiding messy repairs.	View on Amazon (paid link)
KOHLER GENUINE PART 1188998 2″ Toilet Canister Flush Valve Kit	This KOHLER GENUINE PART is perfect for anyone with a KOHLER Cimarron toilet needing a reliable flush valve kit. It’s easy to install and optimizes performance for a smooth, efficient flush.	View on Amazon (paid link)

Detailed Reviews

Discover the top 10 Flush Valve Kits designed to fix leaks, save water, and restore performance. Each kit is expert-reviewed and customer-approved, ensuring reliable solutions for your toilet needs. Whether you’re looking for easy installation or long-lasting durability, this guide has you covered. Find the perfect fit and upgrade your bathroom with confidence.

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

The Fluidmaster K-400H-039 is a high-performance toilet fill valve kit. It works with 2-inch flush valves to make your toilet run like new.

This kit includes a PerforMAX fill valve for full water control. It’s fast and easy to install. The adjustable height fits most tanks.

The water-saving flapper cuts water use per flush. It has a solid frame for a secure seal. Comes with a 7-year warranty.

Pros	Cons
High performance fill valve for full water control. Saves water with included water-saving flapper. Easy to install, fast and hassle-free. Corrosion-resistant flapper for a secure seal. 7-year warranty for long-lasting reliability.	Not for 1.5-inch flush valves, check before buying. Requires basic tools, not tool-free installation. No universal fit, measure tank first.

Perfect For:

This Fluidmaster K-400H-039 kit is perfect for anyone who wants to fix a leaky toilet or save water. It’s easy to install and works great for most tanks.

Ready to Purchase?

View Price on Amazon (paid link)

Best Toilet Flush Valves: Top 10 Picks for a Perfect Flush

2. Sloan R-1005-A Regal Urinal Diaphragm Rebuild Kit, 1.0 GPF – For use with Sloan Regal Flushometers – Includes Diaphragm, Handle Repair Kit, Vacuum Breaker Repair Kit & Tailpiece O-Ring, 3317005

Sloan R-1005-A Regal Urinal Diaphragm Rebuild Kit, 1.0 GPF - For use with Sloan Regal Flushometers - Includes Diaphragm, Handle Repair Kit, Vacuum Breaker Repair Kit & Tailpiece O-Ring, 3317005

The Sloan R-1005-A Regal Urinal Diaphragm Rebuild Kit is a must-have for maintaining Sloan Regal Flushometers. It ensures your urinals work efficiently and reliably.

This kit includes everything needed for a complete repair: a diaphragm, handle repair kit, vacuum breaker repair kit, and tailpiece O-Ring. It’s designed to reduce water waste and save costs.

Using genuine Sloan parts extends the life of your flushometers. They are tested and built to meet Sloan’s high standards. Trust Sloan for smart, water-saving solutions.

Pros	Cons
Saves water with accurate flushes, promoting sustainability. Genuine Sloan parts ensure reliable performance and longevity. Easy repair with all components included in one kit. Reduces costs by fixing worn-out diaphragms efficiently.	Limited to Sloan Regal 1.0 GPF flushometers only. No tools included, requires separate purchase for installation. Natural rubber diaphragm may wear out faster with heavy use.

Perfect For:

This Sloan R-1005-A Regal Urinal Diaphragm Rebuild Kit is perfect for anyone who wants to fix their Sloan Regal flushometer and save water. It’s easy to use and works great for commercial restrooms.

Ready to Purchase?

View Price on Amazon (paid link)

3. Fluidmaster 507AKP7 PerforMAX Universal High Performance 2-Inch Toilet Flush Valve Repair Kit with Gasket and Bolts

The Fluidmaster 507AKP7 is a high-performance toilet repair kit. It fixes 2-inch flush valves in two-piece toilets. This kit is quick and easy to install.

It saves water and stops leaks at the drain. The kit includes a gasket and bolts for a secure fit.

With this kit, you can replace any 2-inch flush valve. It’s a simple solution for a common toilet problem.

Pros	Cons
Quick fix for any 2-inch flush valve in two-piece toilets. Saves water and cuts down on costly leaks at the drain. Easy install with included gasket and bolts—no hassle. Stops leaks fast, keeping your bathroom dry and clean.	Not for one-piece toilets, check before buying. No tools included, you need your own. May need extra adjustments for older toilets.

Perfect For:

This Fluidmaster 507AKP7 PerforMAX Universal High Performance 2-Inch Toilet Flush Valve Repair Kit is perfect for anyone who wants to fix a leaky toilet and save water. It’s easy to install and works with any 2-inch flush valve in a two-piece toilet.

Ready to Purchase?

View Price on Amazon (paid link)

4. Fluidmaster K-540A-015 Universal 3-Inch Toilet Flush Valve Repair Kit with Toilet Tool Multicolor

The Fluidmaster K-540A-015 is a universal 3-inch toilet flush valve repair kit that fixes leaky tanks and restores flush performance. It replaces most 3-inch flush valves, including Toto and American Standard.

This kit is fast and easy to install, comes with a helpful toilet tool, and includes a durable silicone seal. The flapper adjusts to customize water use, and the flush valve height fits more tanks.

Pros	Cons
Fixes leaks, restores flush, saves water, and money. Fits most 3-inch valves, works with Toto, American Standard. Easy install, includes handy tool, no hassle, quick fix. Adjustable flapper, customizes water use, saves more, flushes better. Durable seal, corrosion-resistant, lasts long, 5-year guarantee.	Not for all toilets, check size first. No instructions, might confuse beginners. Tools needed, not included in kit.

Perfect For:

This 3-inch toilet flush valve repair kit is perfect for anyone who wants to fix a leaky toilet tank and save water. It’s easy to install and works with most 3-inch flush valves, making it a great choice for DIY repairs.

Ready to Purchase?

View Price on Amazon (paid link)

5. Fluidmaster K-507A-008 Universal 2-Inch Adjustable Toilet Flush Valve Repair Kit with Toilet Tool Multicolor

The Fluidmaster K-507A-008 is a universal repair kit for 2-inch flush valve toilets. It fixes leaks and restores flush performance easily.

This kit includes a water-saving flapper, adjustable flush valve, and universal gasket system. It fits Kohler, Gerber, and most 2-inch toilets. Comes with a 5-year warranty.

Pros	Cons
Fixes leaks, restores flush, saves water with PerforMAX flapper. Universal fit for 2-inch flush valves, works with most brands. Easy install, adjustable height, includes corrosion-resistant parts. 5-year warranty, toilet tool included, long-lasting repair.	Not for all toilets, check compatibility before buying. No instructions included, might need online help. Tool quality could be better, handle with care.

Perfect For:

This toilet repair kit is perfect for anyone with a leaky toilet tank. It’s easy to install and saves water, making it ideal for DIY fixes.

Ready to Purchase?

View Price on Amazon (paid link)

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

Fix your toilet fast with the Fluidmaster 400AKRP10 kit. It restores overall performance and saves water. Easy to install in 10 minutes or less.

The universal design fits most 2-inch flush valve toilets. It works with 1.6 to 3.5 gallons per flush or larger. Adjusts easily from 9 to 14 inches.

The high-performance flapper saves water with each flush. Replace leaky parts and broken handles for a like-new toilet.

Pros	Cons
Restores your toilet’s performance, making it like new. Universal fit for most 2-inch flush valve toilets. Saves water with a high-performance flapper. Installs in 10 minutes or less, hassle-free.	Not for all toilets, check compatibility before buying. No tools included, you’ll need your own for installation. May leak if not installed perfectly, follow instructions carefully.

Perfect For:

This toilet repair kit is perfect for anyone with a 2-inch flush valve toilet who wants to fix leaks, save water, and restore their toilet’s performance quickly and easily. It’s ideal for DIYers looking for a simple, all-in-one solution.

Ready to Purchase?

View Price on Amazon (paid link)

7. Kohler Genuine Part 1083980 3″ Toilet Canister Flush Valve Kit

The Kohler Genuine Part 1083980 is a 3″ Toilet Canister Flush Valve Kit. It features a 3″ canister with a 3″ outlet. This part is not universal.

To identify if this part fits your toilet, look inside the back wall of the toilet tank. It is compatible with Kohler Cimarron tank model number K-4634. Make sure to check your tank model number before purchasing.

Pros	Cons
Perfect fit for Kohler Cimarron tanks, no guesswork needed. Easy identification with clear tank model number instructions. Durable 3″ canister ensures long-lasting, reliable performance. Not universal, but specifically designed for seamless compatibility.	Not universal: Only fits Kohler Cimarron K-4634 tanks. Specific fit: Requires exact model match for installation. No versatility: Limited to 3″ canister and outlet size.

Perfect For:

This Kohler Genuine Part 1083980 is perfect for homeowners with a Kohler Cimarron toilet tank (model K-4634). If your toilet needs a 3″ canister flush valve, this kit is the exact replacement you need.

Ready to Purchase?

View Price on Amazon (paid link)

8. KOHLER 3″ Toilet Flush Valve Kit, Black, Compatible with Kohler Wellworth toilets, 3″ Canister with a 3″ Outlet, GENUINE PART 1069722

The KOHLER 3″ Toilet Flush Valve Kit is a genuine replacement part designed for Kohler Wellworth toilets. It features a 3″ canister with a 3″ outlet, ensuring a perfect fit and reliable performance.

To confirm compatibility, check inside your toilet tank’s back wall for the model number. This kit is specifically made for the Kohler Wellworth Highline Classic tank (model K-4632).

Easy to install, saves water, and fixes flushing issues. A trusted solution for your toilet needs.

Pros	Cons
Perfect fit for Kohler Wellworth toilets, ensuring smooth flushes. Easy identification with tank model number inside the toilet tank. Genuine Kohler part for reliable, long-lasting performance. 3″ canister with 3″ outlet for efficient water flow.	Limited Compatibility: Only works with Kohler Wellworth toilets. Specific Identification: Requires checking tank model number for fit. No Universal Fit: Not suitable for non-Kohler or other models.

Perfect For:

This KOHLER 3″ Toilet Flush Valve Kit is perfect for homeowners with Kohler Wellworth toilets. It’s easy to install and fixes common flushing issues.

Ready to Purchase?

View Price on Amazon (paid link)

9. Fluidmaster 555CRP8 Universal PerforMAX 5 Minute Toilet Flush Valve Repair Kit 2 In.

The Fluidmaster 555CRP8 is a quick fix for your toilet. It’s a 5-minute repair kit that saves you time and money. No tank removal needed!

This kit has a peel and stick design, so no messy glue. It includes a water-saving flapper and works with 1.28 HET to 3.5 gallon toilets. Easy to install, durable, and corrosion-resistant.

Fix leaky flappers and inefficient valves fast. Save water and cut costs with this universal kit. Limit one per order, so grab it now!

Pros	Cons
Quick fix for leaky toilets, saving water and money. No mess, no glue, no tank removal—just peel and stick. Universal fit works with most toilets, from 1.28 to 3.5 GPF. Durable build resists corrosion for long-lasting performance.	No returns allowed for this closeout item. Limited to one kit per order. Not suitable for flush valves under 2 inches.

Perfect For:

This Fluidmaster 555CRP8 kit is perfect for anyone who wants to fix a leaky toilet quickly and easily. It’s great for saving water and money while avoiding messy repairs.

Ready to Purchase?

View Price on Amazon (paid link)

10. KOHLER GENUINE PART 1188998 2″ Toilet Canister Flush Valve Kit

The KOHLER GENUINE PART 1188998 is a 2″ Toilet Canister Flush Valve Kit. It is a reliable replacement part for your toilet. This kit optimizes flush performance.

This kit features a 3″ canister with a 2″ outlet. It harnesses gravity to improve flushing. It is compatible with KOHLER Cimarron tanks. Look for model numbers K-4418 or K-4369.

The kit includes a complete assembly. It has a tank-to-bowl gasket for easy installation. This genuine KOHLER part ensures long-lasting performance.

Pros	Cons
KOHLER GENUINE PART ensures quality and reliability. Optimizes flush performance with gravity-powered design. Easy identification of compatible Cimarron tank models. Complete assembly includes tank-to-bowl gasket for hassle-free installation.	Limited Compatibility: Only works with specific KOHLER models. No Tools Included: Requires extra purchases for installation. Pricey Option: Higher cost compared to generic alternatives.

Perfect For:

This KOHLER GENUINE PART is perfect for anyone with a KOHLER Cimarron toilet needing a reliable flush valve kit. It’s easy to install and optimizes performance for a smooth, efficient flush.

Ready to Purchase?

View Price on Amazon (paid link)

Buying Guide

Fixing a leaky toilet is easy with the right flush valve kit. We’ve got the best options to save you time, water, and money.

Here’s what to look for when buying a flush valve kit:

Compatibility: Check if the kit fits your toilet model. Look for universal kits or brand-specific options like Kohler or Fluidmaster.
Size: Match the flush valve size (2-inch or 3-inch) to your toilet. Wrong size means no fix.
Ease of Installation: Choose kits with clear instructions and simple tools. Some take just 5 minutes to install.
Water Efficiency: Pick kits with water-saving flappers to cut down on water use per flush.
Durability: Look for corrosion-resistant and long-lasting materials. Kits with warranties offer extra peace of mind.
Complete Kits: Some kits include gaskets, bolts, and tools. These save you from buying extra parts.
Brand Reputation: Trust genuine parts from brands like Kohler, Sloan, or Fluidmaster for reliable performance.

With these tips, you’ll find the perfect flush valve kit to fix your toilet fast!