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Dual Flush Toilets Comparison - September 2025

6 Best Dual Flush Toilets In the UK

1
Best Choice
9.7Exceptional
2
9.5Excellent
3
9.3Excellent
4
Best Value
9.2Excellent
5
9.1Excellent
6
8.9Very Good
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Model

Fluidmaster PRO550UK Top/Side/Front Mounted Dual Flush Valve - White
Model
Geberit Impuls 250 Twico 1 Dual Flush Valve Toilet Cistern Outlet Valve Replacement
Model
Roca Dual Flush Cistern Valve, only D2D for Screw-in rods by Roca, AH0004800R
Model
Twyford Optima49 Dual Flush Toilet Cistern Push Button Assembly (CF1003CP) Siamp
Model
Ibergrif M20522 Toilet Dual Flush Valve with Button, Suitable for 2 Inch (Φ59-61MM) Toilet Flush System Replacement Adjustable, White
Model
Ideal Standard – Dual Flush Pmatic Outlet Valve, EV98167 (Replacement for SV93467), Multi-Colour, 1.5"

Brand

Fluidmaster
Brand
Geberit
Brand
Roca
Brand
Twyford
Brand
Ibergrif
Brand
Ideal Standard

Reviews

3,924 reviews
Reviews
1,281 reviews
Reviews
4,620 reviews
Reviews
8,301 reviews
Reviews
5,634 reviews
Reviews
288 reviews

Features

Easy installation

9.4
Easy installation
9.6
Easy installation
9.9
Easy installation
9.9
Easy installation
9.4
Easy installation
8.9

Worth the money

9.4
Worth the money
9.4
Worth the money
9.3
Worth the money
9.3
Worth the money
9.1
Worth the money
8.6

Durability

9.9
Durability
9.9
Durability
9.6
Durability
9.4
Durability
9.4
Durability
8.9

Tech Specs

item weight

299 g
item weight
590 g
item weight
320 g
item weight
20 g
item weight
500 g
item weight
360 g

customer reviews

4.5 4.5 out of 5 stars 1, 308 ratings 4.5 out of 5 stars
customer reviews
4.6 4.6 out of 5 stars 427 ratings 4.6 out of 5 stars
customer reviews
4.6 4.6 out of 5 stars 1, 540 ratings 4.6 out of 5 stars
customer reviews
4.6 4.6 out of 5 stars 2, 767 ratings 4.6 out of 5 stars
customer reviews
4.1 4.1 out of 5 stars 1, 878 ratings 4.1 out of 5 stars
customer reviews
4.3 4.3 out of 5 stars 96 ratings 4.3 out of 5 stars

batteries required

No
batteries required
No
batteries required
No
batteries required
No
batteries required
No
batteries required
No

product dimensions

29 x 15 x 10 cm 299.37 g
product dimensions
12 x 8.2 x 31 cm 590 g
product dimensions
34.2 x 8.4 x 8.2 cm 320 g
product dimensions
-
product dimensions
14 x 8 x 28 cm 500 g
product dimensions
14.5 x 10 x 18 cm 360 g

batteries included

No
batteries included
No
batteries included
No
batteries included
No
batteries included
-
batteries included
No

item package quantity

1
item package quantity
-
item package quantity
1
item package quantity
-
item package quantity
1
item package quantity
1

style

Manual
style
-
style
-
style
-
style
Dual Flush Valve
style
Single

color

White
color
White and Blue
color
-
color
-
color
White
color
-

material

-
material
Plastic
material
-
material
-
material
Silicon, Acrylonitrile Butadiene Styrene ABS
material
Kunststoff

Available On

Available On
Available On
Available On
Available On
Available On

Our Top 3 Picks

Here are the top 3 recommended products with more information to help you find the right product for you
  • 9.7
    1
    Fluidmaster

    Fluidmaster PRO550UK Top/Side/Front Mounted Dual Flush Valve - White

    9.9 Durability
    9.4 Easy installation
    9.4 worth the money
    Main highlights
    • Water saving adjustable flush volumes on full and reduced flushes
    • Overflow height is adjustable from 8 1/2″ to 13 1/2″
    • Fits both 1 1/2″ and 2″ flush outlets
    • Dual flush button fits Top, Front or side applications
    • Cable length 350mm
  • 9.5
    2
    Geberit

    Geberit Impuls 250 Twico 1 Dual Flush Valve Toilet Cistern Outlet Valve Replacement

    9.9 Durability
    9.6 Easy installation
    9.4 worth the money

    Why we love it

    Easy to fit and adjust for perfect installation.
    Durable and long-lasting replacement for older models.
    Provides a powerful and reliable flush.
  • 9.3
    3
    Roca

    Roca Dual Flush Cistern Valve, only D2D for Screw-in rods by Roca, AH0004800R

    9.9 Easy installation
    9.6 Durability
    9.3 worth the money
    Main highlights
    • The new accents in valve threaded rods, to use, ice etching
    • International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.
    • Excluded push button (sold separately)
    • Easy to change, twist out, remove
    • 2" 51mm Spout

Our ranking system

The TopChoice.co.uk Team selects top-of-the-line items from a wide selection and conducts rigorous evaluations on almost all the products available on the internet. We rank each product based on how well it matches our criteria.We can ensure that the product is well-tested with the help of our expertise, experts, and artificial intelligence technology. TopChoice.co.uk requires consistent care for the products we review, ensuring that our assessments are always accurate and up to date.

Features

Our team of experts analyzes key attributes, capabilities, significance, and many more depending on the type of product to determine its effectiveness.
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Consumer Reviews

We ensure an evaluation of the ratings using references all over the internet for each product. With the help of our AI technology and professional review teams, we give weight to the worth of individual user experiences.
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Popularity

Popularity is an important criterion in choosing a product. Several factors contribute to the popularity of the products on our site, including prestige, relevance, reputation, news, and more.
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Value for money

TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.

When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.