A Shower Power Booster can give you the same output as traditional power showers x20 bigger. It increases pressure in all gravity and mains systems including electric showers and combi boilers. It is low cost, very quiet, and it is a very simple job to fit by a DIY customer of average ability.

In gravity systems, a single SPB2B on the hot not only gives x4 the pressure and x2 the flow of a typical upstairs shower. It adds pressure to electric showers and combination boilers. Patent Protected and 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 to ensure its reliability is second to none and it should give you many years of trouble free use.

A typical power shower will cost £140 to buy and £400 for a plumber to fit it
A SPB2B costs less than £140 and can be fitted in 10 minutes. No Tank Drain Down -No Surrey Flange – No electrician – No additional pipework.

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.

I was sceptical, but after fitting the booster earlier today, it has improved what was an otherwise poor flowing shower to a more than usable shower. No more excuses in our house to keep having baths. (hot and cold conventional gravity system)
Steve PGravesend, Kent



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