Fluidmaster Side-Entry Fill Valve ½" Product Code: 85797

Quiet valve (UK ½") that works well with high or low pressure systems. For toilet cisterns and storage tanks. Unique quick-release and no lever arm to distort tank. Seals are easy to access and simple to change. Durable materials capable of withstanding millions of flushes. Also available with a 3/8" threaded shank.


  • Plastic
  • Height: 222mm
  • Suitable for High & Low Pressure Systems
  • Side-Entry Cisterns ½"


W x D x H: 53 x 100 x 222mm.
Additional Information
Technical Specification
  • Compatibility : Side-Entry Cisterns ½"
  • Brand : Fluidmaster
  • Product Height : 222 mm
  • Product Type : Fill Valve
  • Construction Material (Plumbing) : Plastic
  • Product Width : 53 mm
  • Pressure Suitability : Suitable for High & Low Pressure Systems
  • Product Depth : 100 mm
  • Pack Size : 1
  • Manufacturer Guarantee : 1 Year Guarantee
  • Pieces in Pack/Case : 1
  • Toilet Fitting Type : Fill & Flush Valves
  • Thread Size : ½ "
Product Contents
Float valve, locknut and sealing washer.
Delivery & Returns


Standard delivery service up to 3 working days: €8.95

Free delivery on all orders over €70.00

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€12.95 Incl. 23% VAT

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Fluidmaster Side-Entry Fill Valve ½" is rated 4.5 out of 5 by 119.
Rated 5 out of 5 by from Excellent product Very good product at reasonable price. Well made and east to install. Very quiet in operation.
Date published: 2018-04-11
Rated 5 out of 5 by from Price, quality, reliability. Well made item which is VERY easy to fit and adjust. Screwfix also sell an equivalent for about half the price but this isn't exactly expensive so why risk the cheaper non-branded one?
Date published: 2018-03-21
Rated 1 out of 5 by from poor design I fitted 1 of these just over a year ago and the customer mentioned it was faulty. It's a poor design which means the part that adjust the height of the float catches on the top if the valve tilts in the cistern. With no way of securing the valve so it doesn't tilt it can't be reliable.
Date published: 2018-02-20
Rated 5 out of 5 by from Helia Very good product for the price. Very easy to install.
Date published: 2018-01-03
Rated 5 out of 5 by from Float valve Easy to fit float valve. Needed a side entry and there don't appear to be many of these on the market compared by to the more typical bottom entry. Takes a while to correctly adjust, but if you follow the instructions any basic diyer will be able to deal with this, Just a suggestion if you don't already have one in place take advantage of the fact you have to change and fit a flexible hose with isolating valve. Will mean you don't have to switch water off next time.
Date published: 2017-11-04
Rated 4 out of 5 by from Beware fitting instructions Replacement seal did not stop cistern syphon overflow after draining cold water system. Replacement valve did the same. Had not carried out instruction to clear debris as considered no debris in system. In desparation I did clear debris procedure and valve functioned correctly with water level settling at set float level. Instructions should state that the clear debris procedure MUST be carried out to purge and prime the valve as it is clear that remnants of internal air stopped correct functioning.. Would have allayed a lot of frustration!
Date published: 2017-10-16
Rated 5 out of 5 by from Decent product Seems like a good product. It was really easy to install, even for a complete novice like me. Only time will tell how long it will last but seems sturdy enough.
Date published: 2017-10-14
Rated 5 out of 5 by from Perfect We replaced a similar unit which came with the bathroom suite. Took just 10 minutes to fit without any leaks. No need to purchase the more expensive version with copper pipes, this works just fine with a little ptfe tape. It’s super quiet compared to the last one. The design is so simple there’s little to go wrong. We have a busy house so if we get 5 years use we’ll be very happy.
Date published: 2017-10-13
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