Stuart Turner Monsoon 4.0 Bar Twin Impeller Positive Head Shower Pump - 46417

Stuart Turner Monsoon Shower Pump 4.0 Bar Twin Impeller Positive Head - 46417

15 reviews

£451.00 (Inc. VAT)

In Stock


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.

line break

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. 

line break

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.

line break

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 4.0 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 4.0 Bar Twin Impeller Positive Head - 46417 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 Bar
Pump Type Peripheral

Stuart Turner Monsoon Shower Pump 4.0 Bar Twin Impeller Positive Head - 46417

£451.00 (Inc. VAT)

Stock status: In Stock
Order in next for delivery tomorrow - 31/07/2021

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 £451.00
Bathrooms and Showers Direct £452.11
UK Bathrooms £521.64
Direct Heating Supplies £541.90 £555.30
Ergonomic Designs Bathrooms £721.89

Prices last checked on 29/07/2021
All prices are inc VAT and include delivery charges

Price Guaranteed For

15 Product Reviews

  • Marcus Miller
    5/ 5

    I decided to bite the bullet and pay the money. I use the ST 4.0 to power two showers and it doesn't disappoint. It is still noisy however not as loud as my previous pumps. I guess you're never going to get a completely quiet pump. The power is great even when using both showers. This uses 22mm flexi hoses so may have to do a little plumping as most households have the copper ends reduced to 15mm. Overall happy and got it at a good price from plumb world.

  • David Guy
    5/ 5

    I bought this to replace an old shower pump that no longer worked. Plumbworld had this 4.0 bar pump in stock and at a very good price. Delivery was very quick - I could have had it the following business day if I'd wanted. This is a powerful and quiet pump and well worth the price

  • David Sudlow
    5/ 5

    We were told our previous pump was caput and we would need a new one. I researched and quickly found this was cheapest so ordered. Website easy to use, ordering simple and before I could blink it was on our doorstep. Thanks plumbworld.

  • David
    5/ 5

    Pump arrived within a day and on time. Price was way better than anywhere else - my local bathroom supplier quoted me almost twice as much as Plumbworld for exactly the same item. Quality of pump first rate.

  • Kiran
    5/ 5

    Good price. replacing identical pump. New one slightly smaller footprint Also, sounds quieter, but this may be partly the insulating base - optional extra.

  • Steven Michael
    5/ 5

    Probably the best shower pump you can buy for multiple outlets have fitted them before and will fit them again

  • Stella
    5/ 5

    Our old ST pump lasted 15 yrs, so it a very easy decision to replace it with a new one.

  • Tony N
    5/ 5

    A bit expensive but it does a great job and it's less noisy than the old smaller pump.

  • Oliver Tickell.
    5/ 5

    This pump operates quietly, smoothly and producing tremendous flow and pressure.

  • Quasi
    5/ 5

    This shower is quiet powerful and at £366 excellent value easy to install.

  • Martin Hill
    5/ 5

    Excellent service. Product was a replacement like for like

  • Mike Walton
    5/ 5

    Solid and sturdy pump. Easy to fit as replacement.

  • Andy
    5/ 5

    superb product ordered 2 excellent quick servive.

  • Dave
    4/ 5

    good pump quiet, does what it says, not as powerfull as i thought it would be but still good

  • Malcolm Wadham
    4/ 5

    Good pump but a little noisey hence only four stars.