A Shower Power Booster can be fitted in minutes without modification of your plumbing by any DIY enthusiast to give you the same output as traditional power showers. These pumps pump well above their weight to boost the flow throughout the house, but it is the simplicity of fitting and no need for an electrician which will allow you to solve your pressure problem at half the cost of traditional pumps. A single pump can boost the whole house. We invite you to read our excellent reviews on Trustpilot.

The Shower Power Booster will boost electric showers to stop them dropping out when the pressure fluctuates, and the same thing for showers fed by a combi boiler. They are the only pump that can be fitted on the hot side of a combination boiler to boost a shower. With its extreme durability, pressure rating, and temperature rating, it is suitable for boosting lazy radiators, and even high temperature heat sources such as wood burners, Agas, and solar thermal.

This quiet pump does so much more than a traditional pump, with a patented fail-safe to original flow if you have a power cut.

WRAS Approved, it was awarded Best Water Innovation by Imperial College London at the Institute of Physics in 2012. It is manufactured exclusively in the UK by Flowflex.

With free delivery, a 30 day money back guarantee, and up to 3 years warranty, what’s not to like?

SPB boosts gravity systems, boosts electric showers, increases mains pressure. SPB can boost mixed gravity and mains systems, it is the only pump that can boost combination boilers. It can stop a shower running cold when someone runs another tap.


View our Full Range of Pumps

Shower Booster Pumps

Upgrade Pumps – Add to your existing pump

Upgrade Pumps

WRight Choice Shower Heads & Hoses

Shower Heads & Hoses

Accessories To make fitting Easy!



Any plumber can fit a shower power booster, but if you would prefer a plumber who has fitted our pumps before, please click on the link below:-

See Map Of UK and Irish Plumbers who have fitted ShowerPowerBoosters

How we can boost your water pressure

To get a good shower you must have a good shower head and hose but above all a shower power booster will transform your shower and wow:-



We have hundreds of positive testimonials for this truly amazing invention.

Problem solved and shower working perfectly – yay! Many thanks Alan for your prompt responses and super service. Brilliant product and I’m really pleased with the outcome even though I encountered double trouble!!!
Craig Dennem



Boost Water Pressure and Flow With The Quietest Of In-Line Shower Pumps 23rd August 2018