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Fluidmaster Brass & plastic Bottom entry Float Fill valve

£18.09Inc. VAT

Product details

Product information

Product information

This brass and plastic bottom entry 1/2" fill valve with brass shank is suitable for suitable for low or high water pressure.

  • Manufacturer guarantee - 5 years
  • Comes with Instruction manual
  • Turn off water supply to toilet cistern at storage tank in loft or isolator valve if mains fed. Disconnect pipe work and remove old valve from toilet cistern. Place sealing washer on threaded shank of valve with cone facing down. Position valve in toilet cistern, passing threaded shank through hole in cistern to determine if valve height needs adjusting. Fluidmaster 400-series valves are height adjustable. To adjust the height, remove from cistern and twist threaded shank in or out of the valve body. A clicking noise will be heard on some models. This is normal. The valve height should be adjusted so that the critical level mark on the valve body is located at least 25mm above the overflow pipe. Do not move lock ring, it holds the valve body and shank together under pressure. Do not interchange body with old shank as leaking can occur. Install valve in cistern. Start to thread back nut onto threaded shank so the shank protrudes through the cistern enough to enable tap connector to fit neatly. Do not tighten back nut at this stage. When position is correct and before tightening back nut, reconnect water supply to valve to make sure fibre washer is sealed correctly. Hand tighten connector, do not over tighten. Now tighten back nut, do not over tighten. Turn on water supply.
  • 120mm height adjustment with adjustable float

Features and benefits

  • Silent fill - Ends noisy cistern refills, helping to keep disturbance to a minimum for all the family both day and night
  • Adjustable - Has an adjustable height for easy fit across of different cistern sizes
  • Brass thread - High quality material that reduces the risk of cross threading and damage to the valve
  • Tested to 200000 cycles - To ensure the durability and quality of the valve
  • Suitable for use with both high and low pressure systems - Giving confidence that this is the right product for any type of system
  • (Water supply certification) WRAS certified - Fully complies with all local market regulatory standards, ensuring the quality of the product

Specifications

BrandFluidmaster
Pack quantity1
Inlet positionBottom
MaterialBrass & plastic
Minimum operating pressure0.1bar
Model name/numberF-F-1039
Height (cm)39cm
Width (cm)7.5cm
Suitable water pressureHigh or low pressure
Connection size (imperial)½"
StandardBS 1212
Water regulationsWRAS approved
Product code5060157590187
Manufacturer / EU responsible person

EU responsible person

Fluidmaster d.o.o.

Address

Industrijska cesta 2

Postojna

SI-6230

Slovenia

Contact

Reviews
4.59 / 5(59 reviews)

Tom626 - 5 / 5 - 22/06/2026

Readily available and great quality

Needed to replace my flush mechanism is a hurry after mine sprung a leak. Tradepoint B&Q had a replacement on the shelf and not only was it readily available but better quality than my original.

Polly - 4 / 5 - 11/06/2026

Does what it says

Did the job as required easy to install good value for money

ArP - 5 / 5 - 05/06/2026

Fluidmaster

Bought this to replace it for my daughter. Nice unit and was very easy to fit

Jack224 - 5 / 5 - 26/05/2026

Exactly what was expected straight out of the box

Easy to install, very straight forward to adjust to high. First time fix which was great considering I have minimal plumbing experience

WH1 - 4 / 5 - 25/04/2026

Good product

Easy to install and does the job as required.fitt perfectly

Fred47 - 5 / 5 - 01/04/2026

Quality

Easy to fit a good quality product. Works well . .

FRP - 5 / 5 - 23/03/2026

Replacement Toilet Ball-Cock

We bought this product because our old ball-cock had developed a leak. There were several options to choose from in B&Q, so we went for a slightly more expensive version, with the metal screw fixing rather than a plastic one. Hopefully this one will be more durable than our previous ball-cock. As ever, the prices in B&Q were competitive and fair, and the self checkout process was very easy with no queuing needed. The new ball-cock was extremely easy to fit and adjust to the correct height. It is working very well and there are no leaks!

Deno - 5 / 5 - 22/12/2025

Great item

Got this for a job customer was so pleased to get the leaks sorted good product

A 6 - 5 / 5 - 21/11/2025

easy

easy to fit ,great quality for the price would highly recommend

Ferret - 5 / 5 - 08/06/2025

It works

Brought this on a recommendation well priced easy to install instructions where easy to follow and set it up easy to install and works brilliant and I would recommend