Skip to content

Paint just got cheaper! Including offers on Dulux, Lick & GoodHome. Shop now >>

66 people bought this in 48 hours

Prices nailed

Fluidmaster Plastic Float Fill valve

Sold & shipped by B&Q
£15.38

Product details

Product information

  • 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
  • Green star claim - Keeping toilets in good working order can avoid water wastage from leaking valves.*

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
  • 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
  • WRAS certified - fully complies with all local market regulatory standards, ensuring the quality of the product
  • Anti-syphon - Prevents water contamination

Specifications

BrandFluidmaster
Pack quantity1
MaterialPlastic
Model name/number400UK073
Product height390mm
Product width75mm
Suitable water pressureHigh or low pressure
StandardBS 1212
Water regulationsWRAS approved
Product code0039961702050
Reviews
4.13 / 5(15 reviews)

RussPlumb - 5 / 5 - 25/01/2025

Universal

Exactly what I required & the right price. Easily fitted & adjusted, just the job

John69 - 5 / 5 - 28/12/2024

Easy to fit

I'm a complete novice but found the instructions easy to follow ..

plumbersmate75 - 1 / 5 - 26/01/2024

poor washer seal.

The rubber washer because of the bad design of the threaded part does not seal properly. I had to add several layers of ptfe tape and make umpteen trial runs befor I could make it leak free.

Maria1303 - 5 / 5 - 07/09/2023

Just what was needed.

This was bought because the original one was broken it was hard work taking the old one out but this new one fitted perfect.

HandyW - 5 / 5 - 05/09/2023

perfect replacement

Easy to fit as a replacement works well can't fault it.

Tadcu1 - 5 / 5 - 26/07/2023

Easily fitted replacement part

Bought to replace a defective filler valve, it was easy to fit and easy to adjust. It was a good price and excellent value.

AP21 - 1 / 5 - 02/06/2023

Leaking

This product is faulty. Leaking at the entry side due to poor rubber quality despite tightening the nut. Due to faulty float mechanism, water leaks through the overflow as well.

Andy477 - 5 / 5 - 19/04/2023

Perfect upgrade - very easy to install also

Easy to install - easier to adjust for water economy

toilettinkerer - 4 / 5 - 04/01/2023

Easy

Easy to install, although this felt flimsy it was substantial and after a YouTube video or two we fitted this easily. It was a great price and so saved us a fortune on a plumber.

toiletfixer - 5 / 5 - 29/12/2022

Easy to install

Very easy to install and up and working within 5 mins