Best Thomas Dudley Dual Flush Valves of 2026

Mohammed Clark Avatar
Mohammed Clark
Last Updated: 12 Feb 2026

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Thomas Dudley offers a range of dual flush valves that are designed to improve water efficiency in toilets. These valves allow users to choose between a full flush and a half flush, depending on their needs. By using less water for smaller flushes, these valves help to reduce water wastage and lower water bills. The products are easy to install and compatible with most toilet cisterns. With their durable construction and reliable performance, Thomas Dudley's dual flush valves are a recommended choice for anyone looking to conserve water in their bathroom.

At a Glance: Our Top Picks

Thomas Dudley Niagara Dual Flush Valve 316723 Cover #TOP 1
Thomas Dudley Niagara Dual Flush Valve 316723
ftb score rating icon 9.8
Thomas Dudley 327733 51mm Round Dualflush Button Cover #TOP 2
Thomas Dudley 327733 51mm Round Dualflush Button
ftb score rating icon 9.7
Thomas Dudley Turbo 88 Adjustable Flush Syphon Cover #TOP 3
Thomas Dudley Turbo 88 Adjustable Flush Syphon
ftb score rating icon 9.5

Top 4 Thomas Dudley Dual Flush Valves

#TOP 1

Thomas Dudley Niagara Dual Flush Valve 316723

316723
Multi-colour
Thomas Dudley Niagara Dual Flush Valve 316723 Cover
Thomas Dudley Niagara Pneumatic Dual Flush Valve 316723, Multi-Colour

The Thomas Dudley Dual Flush Valve is designed for use with Thomas Dudley’s vantage, manifold, and duo dual flush buttons, ensuring compatibility and ease of installation. Made from durable plastic and rubber, it offers longevity and reliability in performance. This valve is part of the urinal flush vales category, making it a suitable choice for various settings. By utilising this valve, you enhance water efficiency, which can lead to reduced water bills and a more environmentally friendly home.

What We Like
Compatible with specific flush buttons
Durable plastic and rubber materials
Promotes water efficiency
Easy installation
#TOP 2

Thomas Dudley 327733 51mm Round Dualflush Button

327733
White
Thomas Dudley 327733 51mm Round Dualflush Button Cover
Thomas Dudley 327733 51 mm Round Dio Dualflush Button- White

The Thomas Dudley 327733 Button features a 51mm round design, making it a compact and stylish choice for your toilet. Its chrome finish adds a sleek and modern look, enhancing the bathroom's overall appearance. With the dual flush function, you can choose between two flush volumes, helping you save water and reduce bills. The smooth pneumatic operation ensures a quiet and effortless press, offering you convenience and comfort every time you use it.

What We Like
Compact 51mm round size
Stylish chrome finish
Water-saving dual flush
Quiet, smooth pneumatic action
#TOP 3

Thomas Dudley Turbo 88 Adjustable Flush Syphon

324395
Blue
Thomas Dudley Turbo 88 Adjustable Flush Syphon Cover
Thomas Dudley 324395 Turbo 88 Adjustable Syphon - Blue

The Turbo 88 Flush Syphon is designed for easy installation, offering a height adjustment feature that ranges from 7.5 inches to 9.5 inches. This means you can tailor it to fit your cistern perfectly. It has a 1.5-inch bottom outlet, making it suitable for most exposed and concealed cisterns. Additionally, it provides both a full flush and a water-saving reduced flush option, allowing you to choose based on your needs. You’ll also appreciate that it can be serviced in under five minutes, saving you time and hassle.

What We Like
Easy height adjustment
Fits various cisterns
Full and reduced flush options
Quick servicing
#TOP 4

Thomas Dudley Niagara Mechanical Dual Flush Valve

313348
Multi-colour
Thomas Dudley Niagara Mechanical Dual Flush Valve Cover
Thomas Dudley Niagara Mechanical Dual Flush Valve 313348, Multi-Colour

The Niagara Dual Flush Valve by Thomas Dudley is designed to suit a variety of toilet cisterns, making it a versatile choice for your bathroom needs. Constructed from durable plastic and rubber, you can trust its reliability and longevity. This valve features an efficient dual flush system, allowing you to choose between a full or half flush, which helps save water and reduce your bills. Overall, it provides a convenient solution for modern toilets, improving both function and efficiency.

What We Like
Versatile for various cisterns
Durable plastic and rubber materials
Water-saving dual flush system
Reliable and long-lasting
Buying Guide Image
Editor's Notes

During our Thomas Dudley dual flush valve research, we found 4 Thomas Dudley dual flush valve products and shortlisted 4 quality products. We collected and analyzed 10,850 customer reviews through our big data system to write the Thomas Dudley dual flush valves list. We found that most customers choose Thomas Dudley dual flush valves with an average price of £32.13.

The Thomas Dudley dual flush valves are available for purchase. The top 4 picks range in price from a low of £19.00 to a high of £33.00, find the one that fits your budget.

Written by
Mohammed Clark Avatar

Mohammed Clark is an architect and a contractor. His architectural skills are not limited to designing the plan for structures alone, but it extends to aesthetics and home décor. Before establishing his firm, he worked under a construction firm for eight years. Mohammed has gathered enough experience from his time practicing as a professional architect and now has vast knowledge in home designs and aesthetics.