Stuart Turner Monsoon 4.5 Bar Twin Impeller Positive Head Shower Pump - 46418

Stuart Turner Monsoon Shower Pump 4.5 Bar Twin Impeller Positive Head - 46418

10 reviews

£480.70 (Inc. VAT)

Less than 10 Available


Plumbworld has the lowest price for this product!


Twin Impeller Shower Pump

Twin pumps are designed using the highest standard of technology to boost your water pressure of both hot and cold water supply to a single shower, bath, shower mixer or mixer tap. Put a stop to low water pressure with this pump. It is perfect for transforming your unsatisfactory shower into a powerful and invigorating shower that you'll never want to leave.

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Positive Head

A positive head shower pump is designed to be gravity fed, therefor it needs a 'head' of distance (at least a metre) between the pump and the bottom of the cold water cistern. The gravity feed 'kick-starts' the pump, pushing water straight through to your shower. 

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Flexible hoses included

This shower pump comes complete with four flexible hoses, which are used to link your shower pump to both incoming and outgoing water pipes. These flexible hoses are anti-vibration which means the hoses are less prone to vibration from the pump, helping to reduce noise and prevent damage to the pump itself.

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Where an open vented positive head system exists with a minimum gravity flow of 0.6 l/min, then the Monsoon Standard is the perfect solution.

Standard twin pumps are designed for installation into both the hot and cold water supply - boosting both equally.

They can be used to:

Boost hot and cold water services to the complete home, bathroom, kitchen or cloakroom.

Boost hot and cold water supplies to a high performance shower system.

  • Stuart Turner Monsoon 4.5 Bar Twin Impeller Positive Head Shower Pump
  • Flow switch sensitivity: approx. 0.6 l/min
  • Brass pump head construction
  • G¾ male pump connection
  • Hose with 22 mm plumbing connection
  • Flow and pressure switch operation
  • Continuously rated induction motor (S1) @ 9 l/min and above
  • Fitted with anti-vibration feet
  • System controlled by high quality PCB
  • WRAS approved
  • Please note model is for UK 22mm flexible hose specifciation
  • 5 Year Manufacturer's Guarantee

CE Approved Stuart Turner Approved Retailer

Stuart Turner Monsoon Shower Pump 4.5 Bar Twin Impeller Positive Head - 46418 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.

360 Image




Construction Brass
Feed Compatibility Twin - Hot AND Cold
Installation Positive Head
Output 4.5 Bar
Pump Type Peripheral

Stuart Turner Monsoon Shower Pump 4.5 Bar Twin Impeller Positive Head - 46418

£480.70 (Inc. VAT)

Stock status: Less than 10 Available
Order in next for delivery on Friday - 30/07/2021

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 £480.70
Bathrooms and Showers Direct £487.10
Empress Bathrooms Direct £510.00 £512.58
Pump Sales Direct £519.60
UK Bathrooms £561.96

Prices last checked on 28/07/2021
All prices are inc VAT and include delivery charges

Price Guaranteed For

10 Product Reviews

    5/ 5

    This was worth buying and can feel the difference, this replaced the 3 bar monsoon pump that just didn't give you the wake up feeling, like the 4.5 bar does. Even though longer in body size I didn't need to alter any of the pipework, and it is quieter than my older Bristan 3b pump. I ordered it Friday morning and was delivered Sat 8.30am at no extra cost, so I fitted it straight away to test. Brilliant, Definitely recommend it.

  • Stuart
    5/ 5

    Quality pump that has more than enough power to have 2 strong power showers running at the same time. Replacing an earlier Stuart Turner pump that worked hard for us for about 13years. Very happy to recommend

  • Wayne
    5/ 5

    Had the same pump but lower power for 10 years but developed a fault. Wanted a bit more power, this delivers it beautifully! However, beware, it empties your hot water tank more quickly!

    5/ 5

    Great product great service will use your company in futcher as I am converting a room into a SHOWER ROOM.

  • Gregory Triandafillidis
    5/ 5

    The discounted price was very attractive. I recommended it to my friend who also bought one similar pump

  • ken,ben
    5/ 5

    The goods arrived well before quoted delivery date which was a pleasant surprise

  • william turner
    5/ 5

    Great piece of kit you can feel the difference in the shower.!!

  • Sarah Pain
    5/ 5

    Great product, reliable and easy to install. Would recommend.

  • Steve Gregory
    5/ 5

    Good prices, delivered promptly, easy to fit. Great buy.

  • Dave Cockburn
    5/ 5

    4.5 bar shower pump, at last I have an amazing shower