Best Dual Toilet Flush Valves in 2026

2.4 gpf offers a powerful flush yet saves water over a full-flush volume flush valve

Kit includes diaphragm repair kit, handle repair kit, vacuum breaker repair kit, and tailpiece O-ring

Quiet GO BLUE dual-seal diaphragm with a clog-resistant bypass extends lifespan and lowers maintenance costs

Suitability: Suitable for all Geberit flush valves

Contents Base sealing washer only.

Good quality product

Genuine American Standard repair part

Dual flush valve assembly(3)2-pc toilet-inch

Check your repair part information for compatability

GROHE StarLight finish for scratch and tarnish-resistant surfaces for a lifetime of beauty

For dual flush or start and stop actuation

Horizontal installation

Exposed, quiet diaphragm-type, chrome plated, flushometer valve

Polished exterior less stop assembly

Complete with Zurn's1.0 gpf flush system,

Mansfield Dual Flush Valve Tower - 308DF3

Provides a 1.1 and 1.6 gallon flush.

Fits Mansfield Summit tank model 3386.

Flush rates available are a super powerful 4.5 gpf, the standard 3.5 gpf full-volume flush, and a water-saving 1.6 gpf

Standard 11-1/2 in. rough-in and 1-1/2" top spud

No-leak handle reduces water waste

Genuine Kohler part

Dual flush valve seal

Tank to bowl gasket seal

Compatiable with most dual flush toilet with 48mm hole in the cistern lid.

Material:Plastic

Color:silver

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

【Enhance Your Toilet's Performance】Fix a leaking toilet with 3" (80 mm) drain outlet and turn into a powerful flushing. Using together with R&T fill valve & tank to bowl gasket and bolts will make your toilet flush like new again. Please note: fill valve, gasket and bolts kit are sold separately.

【Water-Saving】The 3 in. (80 mm) dual flush valve provides optional full flush for powerful flushing and half flush for water-saving flushing which reduces your bill. Lighter pushing force, more convenient for elder and children.

【Easy Installation & Adjustment】Easy installation without tools. Adjustable overflow tube to fit different tank heights(11.22"-15.15"), half and full water level adjusters to control water consumption.

Fits for drain diameter 60-75mm(2.36-2.95inch).

The overall performance is good, and it is an ideal substitute for old and damaged water tanks in homes.

Silicone seal water tablets, good sealing effect, never leaks

Convert your existing 2” flush valve toilet to Dual Flush technology

Save water & money, uses up to 45% less water

Retrofits to any 2” flush valve toilet, 1.6 GPF and pre 1994 3.5+ gallon per flush models

Package included: 1PCS 48mm Toilet Tank Button

Dual flush function;please choose the right size when shopping

Made of plastic and silver spray painting

Package Content:1 x Toilet Push Button Valve （Check the size via picture)

Easy to install,with dual flush toilet parts for quick-flush and full-flush capabilities

Drainage Hole Diameter:65-75mm/2.56"-2.95";Toilet Tank Height:210-250mm/8.27"-9.84"

This item is only applicable to 65mm-75mm (2.56inch-2.95inch)Toilet tank hole Diameter. The maximum drainage hole is 78mm, and it cannot be used if it exceeds it.

Measure the height of the water tank without lid: Height Should Be 26cm-29cm (10.24inch-11.41inch),Please measured From the Inside of the Water Tank, otherwise , it won¡¯t fit.

Tips: please check the size in the second image before buying。Before buying, please measure the opening at the bottom of the toile tank and compare it to the diameter listed for this item.It has two Flush Buttons on top (high/low), so it would depend on your toilet tank lid depression pin alignment to this flush device as to which button would get depressed (maybe neither). Bigger question is whether the bottom nut and gasket are the same size as what toilet tank has.

Full drainage, semi drainage adjustable.

Suitable for 65mm -75mm / 2.56" - 2.95" drain holes.

Height: approx.25cm/9.84inch (not include with the base height)

Flush is activated by a no touch sensor mounted inside the tank

Powered by 4 AA batteries (included)

Works with most canister and flapper toilets

1.0 gpf meets U.S. federal standard for water conservation

Quiet GO BLUE dual-seal diaphragm with a clog-resistant bypass extends lifespan and lowers maintenance costs

GO BLUE parts stand up to chloramine and other chemicals, lasting 10x longer than competitors' and keeping maintenance costs to a minimum

Efficient and water-saving, mild and professional, can effectively improve your toilet performance

Easy to use, strong adaptability, you will have a great experience

Toilet drain valve: This is a great toilet water tank inlet drain valve, with exquisite workmanship, and is your best replacement accessory.

Rebuild kit

For exposed water closets

Dual filtered diaphragm assembly

✅ Perfect fit WinZo WZ5080 one piece toilet, also fits other top flush low profile one piece toilet with tank drain hole diameter between 3.18" to 3.5” and water tank height: 7.5" to 8.5" without tank lid (DO NOT FIT TWO PIECE TOILET). Please open you tank and measure the drain outlet before purchasing as per 5th picture on the listing.

✅ Designed with full and half flush options to optimize water use, saves water and reduces your bill.

✅ Easy to adjust flush volume. And the overflow tube could be cut to the proper length with a hacksaw.

High-efficiency 1.28 gaff conserves water and saves money

E-Z Flush series is quick and easy to install and retrofits to other manufacturers’ flush valves

Standard 11-1/2” rough-in and 1-1/2” top spud

For Dual flush or start & stop actuation

Horizontal installation

6 1 ⁄4" x 7 3 ⁄4" (156 mm x 197 mm)

Compatiable with most dual flush toilet with 38mm hole in the cistern lid.

Material:Plastic

Color:silver

👍Compatibility : Works with one piece toilet with standard 3 in. dual flush valve , and requires 8.5 inches minimum clearance from highest point of the flush valve opening to the top of inner tank. It is not suitable for two piece toilet. The flush valve opening hole is required 3.15” to 3.75”. Double check the 5th graphic on the listing.

👍Dual flush design, full for more power, or the half for water savings

👍Save water: each flush option could be adjusted to optimize performance and control how much water you flush

【Compatibility】Standard 1/2 universal interface (2 cm caliber), Suitable for tank depth of 20-33 cm (Toilet bowl,Squatting pan). Product life has increased to 100,000 times

【Water-Saving】Self-owned lifting ball height, saving water. The dual flush valve provides optional full flush for powerful flushing and half flush for water-saving flushing which reduces your bill.

【Eliminates Toilet Leaks】Eliminates common leaky toilet problems due to a worn-out flapper, handle or faulty flapper chain; the silicone seal is also chlorine and chemical resistant and will not warp

💪Universal Size: The universal toilet flushing buttons are compatible with most dual flush toilets. We have 2 kinds of sizes: 37mm*47mm, 48mm*60mm. Diameter 47mm is suitable for holes of toilet tank with a diameter of 37mm-44mm; Diameter 60mm is suitable for holes of toilet tank with a diameter of 48mm-56mm. Please check the size of your toilet lid hole before ordering

💪Easy to Install: The toilet flush button replacement is very easy to install. You need to measure the diameter of the toilet port and choose the right size. Open the toilet cover and pull out the old toilet button, then install the new toilet flushing button into the hole. And the rod of cistern standard part can be can be cut to the right length as measured and needed

💪Premium Quality: The toilet push button flush replacement is made of high quality engineering ABS material with advanced plating technology on the toilet button surface, which is definitely sturdy, water proof, durable and colourfast, not easy to corrode, and can be used for a long time in a wet environment such as bathroom

EFFORLESS UPGRADE：Retrofit your toilet to a Dual flush no-touch Water-saving toilet without replacing anything. This easy-to-install kit brings an automatic motion-activated flusher to most toilets. No handle to touch means fewer germs to pick up or leave behind.

ULTRA WATER-EFFICIENT: Two Infrared sensors are mounted on the upward and Left sides respectively, allowing you to make a “full” (1-5s) or “partial” (0-2.5s) flush simply by waving your hand over the controller, depending on the waste you need to flush. The flush time can be set easily.

LOWER CONSUMPTION: One charge up to 1 year battery life. It is more cost-effective and environmentally-friendly than other products that use disposable batteries. USB type-c port for convenient and fast charging. Compatible with USB adapter or power bank.

Multi-functional upgrade: With the sensor, you can upgrade a normal toilet to an automatic toilet that will flush automatically.when you leave the toilet, Through the sensor 7s, it will flush automatically after leaving. The sensor also supports physical presses to upgrade the toilet to a kick flush mode.

Easy installation: No need to replace any parts, through 10 minutes installation, you can upgrade to automatic toilet, while retaining the manual handle.

Easy maintenance: one maintenance can be used normally for up to 365 days. The external battery box design makes it easier to replace the battery.