Best Square Toilet Tanks of 2026

Name: Quluxe Dual Push Flushing Toilet Buttons
Brand: Quluxe

Jennifer Fraser

Last Updated: 4 Feb 2026

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

Square toilet tanks are a modern and stylish alternative to traditional round tanks. They offer a sleek and contemporary look to any bathroom decor. These tanks come in a variety of sizes and colours to match your toilet bowl and bathroom theme. The square shape also provides practical benefits, such as maximising space in smaller bathrooms and providing a stable base for the toilet bowl. Square toilet tanks are a recommended choice for those looking to update their bathroom with a modern twist.

At a Glance: Our Top Picks

#TOP 1

Quluxe Dual Push Flushing Toilet Buttons

9.8

Buy on Amazon Read Review

#TOP 2

HOMSFOU Dual Flush Toilet Push Button Replacement Portable Toilet Tank Flusher Accessory with Square Abs Design

9.7

Buy on Amazon Read Review

#TOP 3

Excel Home Dual Button Toilet Flush Replacement

9.5

Buy on Amazon Read Review

Top 10 Square Toilet Tanks

#TOP 1

Quluxe Dual Push Flushing Toilet Buttons

Quluxe
XIAN1616
Gray
64×33mm

Quluxe 4 Pcs Square Toilet Tank Buttons Dual Push Flushing Toilet Button Toilet Button Replacement Toilet Flush Button with Thread Diameter (64×33mm)

The Quluxe Toilet Flush Buttons offer a practical solution for your flushing needs. With a size that fits most dual flush toilets, you can enjoy the convenience of easy installation—simply insert the button handle into your toilet tank without the need for any tools. The adjustable torsion bar allows you to customise the length to suit your requirements, ensuring optimal functionality. Made from corrosion-resistant ABS material, these buttons are both durable and stylish, enhancing the overall look of your bathroom.

9.8

Buy on Amazon Find on eBay

What We Like

Easy tool-free installation
Adjustable length for convenience
Durable corrosion-resistant material
Compatible with most dual flush toilets

#TOP 2

HOMSFOU Dual Flush Toilet Push Button Replacement Portable Toilet Tank Flusher Accessory with Square Abs Design

HOMSFOU
RAFVO14YQ20I437OTPJC
As Shown
16x7cm

HOMSFOU Dual Flush Toilet Push Button Replacement Portable Toilet Tank Flusher Accessory with Square Abs Design Compatible with Most Models for Water Saving and Easy Installation

Features

Easy Installation And Compatibility: Designed For Convenient Installation, This Toilet Tank Flusher Button Is Compatible With A Wide Range Of Toilet Models, Ensuring A Practical Upgrade Without Leakage Issues Or Complex Setup
Dual Flush Functionality: This Toilet Push Button Replacement Features A Dual Flush Design, Allowing Users To Select Between Full And Half Flush Options To Effectively Reduce Water Consumption And Promote Eco-Friendly Bathroom Use
Sleek And Stylish Design: Featuring A Rectangular Silver Oblong Shape, This Toilet Tank Flush Button Adds A Modern And Elegant Touch To Bathroom Décor While Maintaining Practical Functionality

9.7

Buy on Amazon Find on eBay

#TOP 3

Excel Home Dual Button Toilet Flush Replacement

Excel Home
23103
Matt Black

Excel Home Toilet Flush Button Replacement - Dual Button Toilet Flush Button - Pneumatic Technology - Fingerprint Resistant Compatible with Air Houses - Square Push Button Design (Matt Black)

The Excel Home Flush Button is a convenient solution for replacing your toilet's flush mechanism. With a pneumatic design, installation is a breeze as it simply screws in without the need for extra tools. Its universal size means it fits most dual flush toilets, making upgrades easy for you. The fingerprint-resistant chrome finish ensures that your flush button remains looking clean and new, while the two-button design helps you save water by allowing you to choose the amount needed for each flush.

9.5

Buy on Amazon Find on eBay

What We Like

Easy installation
Fits most toilets
Fingerprint resistant finish
Water-saving dual flush

#TOP 4

ALLIZ Square Chrome Pneumatic Flush Plate

WITPOCE

Square Chrome Pneumatic Toilet Concealed Cistern Large Flush Plate WC Button

The ALLIZ Flush Plate is an excellent choice for those looking to enhance their bathroom with a modern touch. Its design is ideal for concealed cisterns, allowing for a sleek and unobtrusive look. The contemporary style of this flush plate not only complements various bathroom aesthetics but also provides easy operation with a pneumatic mechanism. This means you can enjoy a smooth and efficient flushing experience, making your bathroom visits more convenient.

9.3

Buy on Amazon Find on eBay

What We Like

Modern design
Easy to operate
Ideal for concealed cisterns
Sleek appearance

#TOP 5

Brushed Brass Cistern Button | Brushed Brass | Cistern Button | Toilet Button | Flush Button

Corso Bathrooms
CB-SCB
Brushed Brass

Features

78mm Square
Brushed Brass Finish
To Be Mounted In Furniture

9.1

Buy on Amazon Find on eBay

#TOP 6

Noir Black Cistern Button | Matt Black | Cistern Button | Toilet Button | Flush Button

Corso Bathrooms
CB-SCB
Matt Black

Features

78mm Square
Matt Black Finish
To Be Mounted In Furniture

9.1

Buy on Amazon Find on eBay

#TOP 7

LSSEDA Toilet Push Button Flush Replacement,Outer length 72mm width 50mm Square Toilet dual push button

LSSEDA
LSSEDA

LSSEDA Toilet Push Button Flush Replacement,Outer length 72mm width 50mm Square Toilet dual push button,for Toilet water tank ceramic cover flush Double push buttons

Features

Important: Please Compare With Your Current Flush Button To Ensure The Threads, Rod And Size Are Compatible.

9.0

Buy on Amazon Find on eBay

#TOP 8

Balterley Concealed Cistern with Dual Flush, Water Saving Side Inlet Concealed Toilet Cistern & Square Flush Plate

Balterley
Brass

Balterley Concealed Cistern with Dual Flush, Water Saving Side Inlet Concealed Toilet Cistern & Square Flush Plate for Back to Wall & Wall Hung Toilets - 303x136x334mm (Brushed Brass/Black)

Features

Water-Saving Dual Flush: This Dual Flush Toilet Cistern Kit Is Equipped With A Dual Flush Mechanism That Lets Users Choose Between Partial Or Full Flush, Helping Reduce Water Waste While Maintaining Strong, Reliable Performance For Everyday Use.
Durable Polyethylene Construction: Made From Durable High Density Polyethylene, This Toilet Tank Cistern Offers Exceptional Resistance To Corrosion, Impact, And Leaks, Ensuring Long-Term Reliability In High-Use Bathroom Environments.
WC Furniture Units Compatible: Perfectly Suited For WC Furniture Units, This Concealed Cistern Pairs Easily With Back-To-Wall Toilet Pans, Maximizing Floor Space While Maintaining A Clean, Streamlined Appearance.

8.8

Buy on Amazon Find on eBay

#TOP 9

Woogim Dual Push Toilet Flush Button

Woogim
Black
46x46mm

Woogim Toilet Tank Button Dual Push Flushing Toilet Button Black Toilet Push Button 46x46mm Toilet Flush Button with Thread Diameter

The Woogim Toilet Flush Button is constructed from high-quality ABS and stainless steel, ensuring durability and resistance to corrosion and rust. Its size, measuring 60x60mm, fits perfectly into most dual flush toilets with 46mm square holes. You will appreciate the adjustable torsion bar, allowing you to customise the length to suit your needs. This feature ensures a snug fit, enhancing performance and ease of use. Before purchasing, you can easily check if it fits your toilet lid's hole size, providing you with confidence in your choice.

8.8

Buy on Amazon Find on eBay

What We Like

Corrosion and rust resistant
Adjustable length for convenience
Fits most dual flush toilets
Durable and sturdy construction

#TOP 10

Operitacx Toilet Water Tank Push Button Accessory Single Flush Button

Operitacx
35D1347BDBU
Silver
14.5X4.6CM

Operitacx Toilet Water Tank Push Button Accessory Single Flush Button for Easy Installation Compatible Standard Toilets Round Design for Home and Public Use

Features

Easy To Install, No Other Tools Required, Can Be Used As Long As The Size Is The Same.
Great For Broken Or Old Toilet Button, Reliable And Sturdy For Long Time Use.
High Brightness And Super Smooth Surface To Enable You Use More Safely.

8.6

Buy on Amazon Find on eBay

Editor's Notes

During our square toilet tank research, we found 32 square toilet tank products and shortlisted 10 quality products. We collected and analyzed 1,774 customer reviews through our big data system to write the square toilet tanks list. We found that most customers choose square toilet tanks with an average price of £20.00.

The square toilet tanks are available for purchase. We have researched hundreds of brands and picked the top brands of square toilet tanks, including Quluxe, HOMSFOU, Excel Home, WITPOCE, Corso Bathrooms.

Written by

Jennifer Fraser

Jennifer Fraser is a licensed contractor specializing in sales, maintenance, and kitchen, bathroom, and home appliances, tools, and utilities. She owns a store in Leeds where you can get any home and tool appliance. Jenny has a degree in literature, but she combines her knowledge and experience with her degree to publish DIY articles on solving home appliances issues to keep up the family enterprise.