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 cheaper, quieter, and is a very simple job to fit. A 5* review on Trust Pilot and with 97% approval in general means this is a product you can trust.

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.



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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:-

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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 fitted the shower booster with thermo switch in my airing cupboard, I am a DIY plumber and it took me just 90 minutes to complete the job including taking an electrical spur from my immersion heater for power. I have a gravity fed system with one and a half metre head of water from the cold tank, which is in my loft. Prior to fitting the unit I was getting just 3.2 litres of water a minute from the shower so only just good enough. After fitting the unit I am getting 6.2 litres a minute, this g…
Mike Leech


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