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Viva Skylo Dual Flush Syphon

4.7 (487 reviews)
SKU: 240304164000006 EAN: 5060262739990
A traditional replacement toilet syphon. • Height adjustable: 190 - 288mm (7.5" - 9.5") • Internal overflow • Dual flush function • Multiple flushing volumes • 10 year warranty
Brand Viva
Flush Type Dual Flush
MPN AS01
Style Traditional
Type Toilets
No features listed
No items listed

Customer Reviews 487

4.7
487 reviews
5 star
402
4 star
62
3 star
9
2 star
3
1 star
11
This kit did the job
5.0
February 24, 2026
f82cef37-766f-53d2-a3bf-cb590cc5be20 Verified Purchase

Toilet flush been playing up for a while, nagging wife kept reminding me to get it sorted,Toolstation was my budget saver, at a good price too.

Great product, very good value..
5.0
February 23, 2026
5842f8ed-2b4f-5758-9c03-3be88e51d273 Verified Purchase

This product works really well and is easy to fit. Although it is the cheapest on the market the quality is very good.

Great quality item
5.0
February 21, 2026
Captain Cecil Verified Purchase

Good quality syphon and at a great price was straight forward to install.

Easy fix.
5.0
February 17, 2026
f70b90fc-0cab-513e-82a5-79017e0c4de7 Verified Purchase

It's an easy fix. Straight swap no messing. Dual flush.

Skylo dual flush syphon
5.0
February 17, 2026
K SPENCER Verified Purchase

Good price fits most situation easy replace diaphragm

Easy to fit
4.0
February 9, 2026
AG17 Verified Purchase

Easy to adjust and fit, very cheap. Shame it doesn't come with a rubber washer for the back nut.

Great product at a great price
5.0
February 4, 2026
Shortarse Yoda Verified Purchase

Decent quality, good value and easy to fit. Adjustable flush volume is a bonus.

Good quality replacement.
5.0
January 23, 2026
7ba05991-6f1c-528b-9ce1-4789c79b5772 Verified Purchase

Old style cisterns need a syphon works fine for years so many customers don’t want to rip out the old loo.

Easy replacement
5.0
January 17, 2026
Steve Haz Verified Purchase

I purchased this to replace a similar one in my 95 year old mums home so it had to work and be simple to fit and work. And it did .simple. straight forward and was a perfect replacement for a DIY plumber Would recommend

Great Product
5.0
January 15, 2026
Keen DIYer Verified Purchase

I haven't used this item on this occasion as it didn't fit the cistern, which is of a very narrow design. I have used the product in the past and it worked as it should. This one is now in stock for the next job.

Dual Flush Siphon
5.0
January 15, 2026
75b4aede-3c87-56c1-9f3f-5cf23746b7ea Verified Purchase

Works fine & reasonable price. It is also very easy to fit

Replacement
5.0
January 3, 2026
David10 Verified Purchase

Great value item easy to fit perfect replacement for old

Viva Skylo Dual Flush Syphon
5.0
December 27, 2025
userm8722 Verified Purchase

Toolstation to the resue! In stock and the best price. Thank you.

Repair
5.0
December 22, 2025
Abode Property Developers Verified Purchase

Needed to do a repair for a client whos toilet cistern was broke. This was easily done leak free using this product.

Cistern Syphon
5.0
December 18, 2025
DIY Derk Verified Purchase

A decent product, very low price. It needed adapting slightly to fit in the base of the cistern but it works fine.

Toilet flush
5.0
December 17, 2025
094e32f7-3d6d-5ace-9daf-72b6396cd581 Verified Purchase

Easy to fit instructions idiot proof works really well and a bargain at this price

Bog flush
5.0
December 8, 2025
95 Verified Purchase

The instructions can be misleading. I fitted the syphon at its maximum length as supplied because its marked 9l and my old toilet has a large cistern. Then I realised that the height of the syphon has to be set to the overflow line for the internal overflow. Also initially it was only working on half flush and I thought it was faulty. Moving the fill valve spout away from the top of the syphon solved the problem.

My fault for not measuring first
4.0
December 6, 2025
Hector C Verified Purchase

I bought this syphon after reading other reviews and it seems nobody had the problem that confronted me. I was replacing a round plastic syphon with this oblong one and it was fractionally too long to fit the downpipe in the hole as the lip of the syphon caught on the tapering side of the cistern.
Having looked at the spec sheet, it does have measurements.
Lesson learnt and offered to others: measure the bottom of the cistern from the hole to the lowest internal edge.
Given a 4 star as I don't know how it works when fitted.
Toolstation staff were excellent in helping me measure other replacement items. Now it's all sorted!

Good value
5.0
December 6, 2025
Ralf care Verified Purchase

Easy fit great features, internal overflow water saving system

Good value.
4.0
December 6, 2025
The Pastor Verified Purchase

I was going to replace the diaphragm but when I saw the price of this i decided to replace the whole syphon, No regrets.

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