Stuart Turner Mainsboost Flomate MBF 12 - 46574

Stuart Turner Mainsboost Flomate MBF 12 - 46574

8 reviews

£244.84 (Inc. VAT)

In Stock


Plumbworld has the lowest price for this product!



The Mainsboost Flomate MBF 12 Mains Boost pump is ideal for properties with low occupancy and typically just one bathroom. It’s designed to be directly connected to the incoming mains and will provide an additional 1.5 bar to the existing mains pressure and a maximum 12 litres minute flow rate.

When a flow rate of 0.6 litres per minute or more exists the pump will start automatically.

The Mainsboost Flomate MBF 12 also features a built-in bypass. This means that when the mains pressure is exceeded by 1.5 bar, the extra performance is not reduced.


Features and Benefits:

  • Brass constructed impeller and pump body
  • Requires 0.6 l/min through the outlet to start
  • Includes anti-vibration feet
  • Dry run protection
  • Pump connection: G 3/4 Male
  • Quiet operation from 50dB
  • IPX4 enclosure protection
  • Peripheral type pump
  • WRAS Approved
  • 3 Year guarantee


Unit Dimensions:

  • Length (mm): 210
  • Width (mm): 130
  • Height excluding hoses (mm): 231
  • Weight including fittings (kg): 5.2
CE Approved Stuart Turner Approved Retailer

Stuart Turner Mainsboost Flomate MBF 12 - 46574 Video


UK Manufacturing Heritage
Over 110 years of engineering excellence.
Operates from the same site in Henley-on-Thames where the company started in 1906.
A contributory member of the BPMA (British Pump Manufacturers Association).
The UK’s market leading manufacturer of shower pumps for over 40 years.


Continually Evolving and Innovating
Continual investment in research and development ensures Stuart Turner remains at the forefront of design technology and innovation.
Developed the domestic shower pump market in the 1970’s.
Holders of numerous patents relating to shower pump technology including GB2494485 for Flomate and GB2349908 for mainsboost.
Four additional shower pump technology patent applications currently in progress.
Engineering Patents include everything from the Milking Machine to the 650cc water cooled, two stroke motor bike between 1912 and 1913!


Every pump is manufactured from only the highest quality components and raw materials.
Each individual pump is fully tested before leaving the factory.
All whole house, bathroom and shower pumps are WRAS approved and manufactured within ISO 9001:2008.
Guarantees that lead the industry - five years for Monsoon and Mainsboost.

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Stuart Turner Mainsboost Flomate MBF 12 - 46574

£244.84 (Inc. VAT)

Stock status: In Stock
Order in next for delivery on Saturday - 18/09/2021

Parcel Shipping - Free

Delivery to your home, 6 days a week with a next-day option for orders placed before 3:00pm.

All our parcel deliveries are FREE

365 Day Returns

Returns Policy - Changed Your Mind?

If you change your mind about the product when you receive it you can notify us any time within 365 days and return it for a full refund at your own cost. Any refunds will be made within 30 days of receiving your returned item. You are expected to cover the cost to return the item and your initial delivery charge will not be refunded.

More details here

Lowest Price Guaranteed
Plumbworld £244.84
Trading Depot £250.00
Bathrooms and Showers Direct £269.11
Taps Empire £318.85
Direct Heating Supplies £343.73 £445.63

Prices last checked on 16/09/2021
All prices are inc VAT and include delivery charges

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8 Product Reviews

  • Mr Robert Lockey
    5/ 5

    This pump is excellent. I live on a Park with 35 homes and the pressure can drop drastically at peak times. Sometimes only 4 lts/min. I'm now getting 10 lts peak time and 12 off peak. Full flow wasn't achieved straight away I think the pump needed to "run in". It is also so quiet no more than the sound of water going through the pipes. Really easy to fit for a competent DIY'r. Definitely fit a non return valve,this is needed for the regulations but also think the pump would hunt without it as very sensitive to pressure changes.

  • Plumbworld Team
    5/ 5

    Here at Plumbworld we love bringing you quality products at competitive prices. We are therefore happy to bring you these fantastic Stuart Turner shower pumps at their lowest price, guaranteed. With Stuart Turner, you know that you are buying a quality product that will stand the test of time. Plumbworld recommends this product!

  • sue
    5/ 5

    Really rate PlumbWorld - they never fail to deliver and their prices are always the best. Will definitely continue to purchase from you.

  • Trevor Tudor
    5/ 5

    Bought this pump as the pressure in my house was terrible. Very easy to fit, quiet operation and has boosted the flow in my house

  • Davie
    5/ 5

    This was a brilliant fix for house all pumped into drawing with bypass check valves massive difference

  • Jennifer Jones
    5/ 5

    Perfect replacement at an unmatchable price and installation couldn’t have been easier.

  • Faris Muhammad
    5/ 5

    Great product and great service will use again. I recommend greatly.

  • Duncan McLean
    4/ 5

    Nice pump fairly quiet under the sink. Although I have correctly installed with double check v/v etc it sometimes tends to run on a bit [not sure why].However I have noticed a significant increase in pressure. So on the whole pleased.