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Opella Dual-Flush Siphon

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.

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Product contents:
Siphon, backnut, seal, coupling nut, washer, c-link and instructions.

Flushing volume 4/6Ltr. 1½" BSP outlet thread. WRAS.


4.5038 5 131

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Opella Dual-Flush Siphon 4.5 5 131 131
No more double flushes This Opella duel-flush siphon was subsequently easy to fit and adjust that others I have installed. And it’s more powerful than the original one it replaces as other reviews have said, the plus for me was the staff at the shop as it was a click and collect item, they were more than helpful, plus the tea/coffee room at the shops for plumbers is a treat well done Screwfix 23 Apr 2015
opella duel flush siphone the opella duel flush siphone was easy to fit and calibrate. It is more powerful than the one it replaced and I would recommend both the opella duel flush siphone and screwfix to family and friends. 21 Apr 2015
duel flush syphone the duel-flush syphon works great easy to fit and great value for money 15 Apr 2015
Flush it Bought this as the old one had had it's day. Just been under 48hrs n seems to be doing its job as advertised. 31 Mar 2015
  • 2015-04-26T13:26:29.447-05:00
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Brand Opella
Colour Black
Connection Type 1½" BSP Connection
Manufacturer Guarantee 1 years
Manufacturing Standards WRAS
Model No DFA08025
Pack Size 1
Product Depth 95 mm
Product Height 280 mm
Product Length 220 mm
Product Thickness 95 mm
Product Type Dual-Flush Siphon
Product Width 95 mm
Total Product Weight 0.19 kg
Volume 4 and 6 Ltr