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Shower Power Booster


DIY FIT in 3-Steps

Used in over 20,000 UK HOMES

SP1U & SP2U Upgrade Pumps

The easy, efficient & effective way to boost showers & taps


Free Delivery

SP1U Upgrade Slave Pump.
  Product Price Quantity Total

Buy from Alan Wright the Inventor on this site

If you have already bought the ShowerPowerBooster SP2B or SP1 to single boost just one pipe you can add a second pump to upgrade your purchase.
SP2B + SP1U = SP21S
SP2B + SP2U = SP22S

Adding an extra pump will let you single boost the hot and the cold (SP22S) or double boost the hot or the cold (SP21S) from the same 3 amp transformer you bought earlier.

The SP1U and the SP2U come with free 22mm to 15mm adaptors so you can fit the pump onto 22mm or 15mm.
It includes 3 and 4 way cables to connect to your first pump.
It does not include a 3 amp transformer.
You can fit it to boost any pipe by cutting out 110mm of pipe and connecting it with the pumps DIY friendly compression joints.

  • DIY install in 3 easy steps
  • Simplest way to boost showers & taps
  • Completely automatic operation
  • No Cylinder Shower Pump Flange – Works at Any Angle
  • Safe 12V DC – no electrician needed!
  • Unique patented & award-winning design
  • 2 year warranty & 30 day return policy (only if bought on this site)
  • WRAS Approved & British designed & made

Both upgrade pumps are single boost pumps which can add an extra 0.5 bars of pressure to a hot or cold pipe and up to an extra 1.0 bars in total.