Suitable for both positive and negative, gravity fed water systems, this high quality 1.5 bar twin impeller shower pump from Salamander will help to improve the performance of a single outlet, such as a shower. With an extremely quiet and smooth operation, the RP50U uses centrifugal technology to maintain a consistent pressure, even when another outlet, such as a tap, is being used.This Salamander shower pump is manufactured in the UK from high quality materials, and designed to be hardwearing, for everyday use. AV couplers are also included. Must be used with an anti-aeration cylinder fitting flange.*This pump comes complete with a 2 year guarantee, however this can be extended up to 3 years if you contact the PumpWise team at Salamander on 0191 516 2002 to confirm correct installation.