Opella Dual-Flush Siphon 220mm Product Code: 20824

Dual-flush toilet siphon with variable flushing volumes (4 and 6Ltr) and internal overflow. Compatible with most lever operated cisterns. Manufactured in the UK.


Flushing volume 4/6Ltr. 1½" BSP outlet thread.
Additional Information
Technical Specification
  • Brand : Opella
  • Product Height : 280 mm
  • Product Length : 220 mm
  • Product Type : Dual-Flush Siphon
  • Volume : 4 / 6 Ltr
  • Connection Type : 1½" BSP Connection
  • Pack Size : 1
  • Manufacturer Guarantee : 1 Year Guarantee
  • Pieces in Pack/Case : 1
  • Toilet Fitting Type : Fill & Flush Valves
Product Contents
Siphon, backnut, seal, coupling nut, washer and c-link.
Delivery & Returns


Standard delivery: €15

Free delivery on all orders over €70.00

Click here to see information on our delivery charges and times



Hopefully you won't need to return an item, however, if you do, it is our aim to make this as simple as possible. By following the guidance below you can help us to help you when a product is not what you expected, or is faulty. Your statutory rights are not affected by this guidance.


Click here to see information on returns and cancellation

€5.95 Incl. 20% VAT

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Opella Dual-Flush Siphon 220mm is rated 4.5 out of 5 by 332.
Rated 5 out of 5 by from Does what it's meant to do. Simple as this. Does what it's meant to do at the right price.
Date published: 2017-07-18
Rated 5 out of 5 by from Dual flush Don't be fooled by price this fits and works brilliantly Toilet Like Niagara falls now
Date published: 2017-07-14
Rated 3 out of 5 by from A Good product, but.... This seems to do what it says on the tin and for a very reasonable price. Now here's the but.... mine did not come with the big soft 'doughnut' washer included and also I had to salavge one of the old sealing washers off the old cistern in order to pack out between the metal securing bracket and the underside of the porcelain to effect a good seal. Might have been a one off but something to lookout for.
Date published: 2017-06-22
Rated 5 out of 5 by from broken loo system Great price for this system just what i wanted for my old loo works perfectly now after fit this
Date published: 2017-06-12
Rated 1 out of 5 by from Avoid At All Costs - Very Poor This is the second time I have fitted this product - the previous one lasted about six months before not working properly...this one was even worse. After fitting on first test the top section of the fitting (blue) had not been manufactured properly and was spitting water out of the seam so the toilet wouldn't flush. With the help of super glue I resolved this and it worked fine. It operated well for exactly seven days before the flush stopped totally. On removal this was because the transparent perspex at the bottom - used in the flush mechanism had come away rendering it useless. I would seriously advise everyone to buy a more expensive product - as this has wasted several hours of my time. I also think Screwfix should stop selling products of such poor quality. I replaced it with a Thomas Dudley Siphon which is much better quality and is working fine.
Date published: 2017-05-07
Rated 5 out of 5 by from Bargin Bargin priced duel flush siphon. Easy to change and does the job perfectly every time. Got an old loo and need parts then get this. Saves on the price of a new loo for the sake of a dodgy flush. Money saver.
Date published: 2017-04-14
Rated 4 out of 5 by from Ocellated dual flush siphon Great bit of kit, easy to fit, excellent price , so you don't have to be FLUSh to get one .
Date published: 2017-04-06
Rated 5 out of 5 by from Perfect Lads, Lads & Ladies... it's great to see an online competitor that has a user friendly well discripted website that offers value for money. Perfect fit, works great & the delivery to Ireland was quicker than some national orders I've previously made. Thanks Screwfix & a credit to your boys @ the other end delivering your product.
Date published: 2017-03-26
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