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Free delivery (see T&Cs) When you spend £25
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COVID-19 UPDATE (including the latest service updates for our Contact Centre, Delivery and Branches). Click here for details.
£17.82 Exc. VAT £14.85
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Product Details

Compact dual flush syphon for 1 1/2" lever operated toilets. Split syphon easy to install and service. Light touch flush activation. Rapid height adjustment. Unique full and partial flush volume adjustability. WRAS approved.

Delivery details

Covid-19 Update

  • Free Next Business Day delivery for orders over £25 to home and site is available for orders placed before 2pm
  • Saturday and Sunday delivery is now available for orders placed before 2pm on Friday for Saturday delivery and 2pm Saturday for Sunday delivery, see here for details
  • We have temporarily suspended our Pre-12 delivery service
  • Once your order has been dispatched you will receive an invoice email with the courier details and your tracking number
  • Alternatively go to MyAccount, click on your Order History, click on the TRACK icon to link through to the carrier website and the tracking details for your delivery
  • If your order contains more than one item it may be split into two deliveries as we manage volume across our network
  • Due to carrier constraints it is not currently possible to deliver age restricted items. Please use our Click & Collect service for these products
  • Delivery direct from suppliers is now available and specific delivery times will be displayed on the product page
Order Value: Under £25 Over £25 but less than £75 £75 & Over
Next Business Day Delivery (Mon-Fri) usually before 6pm £5 Free Free
Pre-12 Delivery before 12 noon Next Business Day £10 £5 £5
Remote areas standard delivery (2-4 days) £5 Free Free
Saturday Delivery order by 2pm Friday £10 £5 Free
Sunday Delivery order by 2pm Saturday £10 £5 Free


Please note items delivered by our suppliers are not available for the options above. Delivery times may vary.

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Click & Collect details

Covid 19 Update

Click & Collect

  • Safe contactless collection is available 7 days a week at our branches
  • Our branches are open 8am-5pm Mon-Sat and 9am-4pm Sun
  • Keeping our colleagues and customers safe and well and respecting stringent social distancing requirements is our number one priority – 2 metre rule enforced
  • Our available product range will not require more than 1 person to lift
  • Please see our guide to click and collect below

  • Please ensure that your mobile number is added so that we can text you when your order is ready to collect

Call & Collect

Due to current trading conditions we have suspended our Call & Collect service until further notice.

If you are using our Click & Collect service please note the following:
  • Order online or over the phone and collect in branch from 5 minutes later.
  • Ensure you check stock is available for collection at your chosen branch.
  • Check branch opening hours to ensure you have sufficient time to collect.
  • For items not available for same day collection, place order before 7pm Mon-Fri (4pm Sun) and you can collect Next Business Day (Mon-Fri) after 3pm.
  • If we have your mobile number, we’ll send you a text when your order is ready to collect.
Reviews
Fluidmaster Universal Dual Flush Ultra Syphon 7 1/2 - 9 1/2" is rated 4.6 out of 5 by 7.
Rated 5 out of 5 by from Good quality Problem solving siphon. This will fit where regular siphoners wont, good replacement for the round type where the cistern is tapered. Has the hole in the top to facilitate a screw on lid and is fully height adjustable with dual flush
Date published: 2020-01-27
Rated 4 out of 5 by from Fully adjustable dual flush This enabled me to convert my loo to a dual flush option. Great for the environment! Its nice and compact and so fits in my quite narrow cistern. Fully adjustable to control the water quantity for both flushes and also is height adjustable. I'm not 100% convinced about the quality of the parts but only time will tell that one and I have no reason to think it will not be fine.
Date published: 2019-10-19
Rated 5 out of 5 by from Excellent Product Lots of adjustment of size to fit your cistern. Internal overflow and a very easy flushing action.
Date published: 2019-07-02
Rated 5 out of 5 by from Worth the extra Decided to go with this one , could have gone cheaper but this is a great quality part , easy to fit and all the parts needed to fit. Super smooth light flushing action does a great job
Date published: 2019-05-13
Rated 4 out of 5 by from Quick installation Purchased to replace a cheap syphon fittef 5 years ago, membrane completely shot! I had difficulty making it watertight, so fearful of a repeat. Dismantled with reletive ease and all went together without a hitch. Used the old syphon as a reference, as discribed in the instructions. Fingertip flush, only negative is the counter intuitive short and long flush is frack to bont! Thus far, a good purchase at a reasonable price.(purchased new Donought kit also)
Date published: 2019-04-14
Rated 4 out of 5 by from Fluidmaster Toilet Syphon Replaced original Toilet syphon of 15yrs just over 12 months ago with the cheaper option only to regret it now as entails more work. Easy to install and to set up required height and flush. Hope the diaphragm lasts longer although it says it’s a lot easier to maintain. Will have to wait and see once it’s been in use a while. Hence only 4 Stars.
Date published: 2019-04-11
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