The STR2 SSR2 range of shower booster pumps has been specifically designed to minimise turbulence within the pump head, giving class leading efficiency and low noise levels. The quiet AC induction motor is smooth and reliable, and the regenerative design of impeller is ideal for overcoming air pockets that can be generated in a shower system. This type of pump is ideal where the plumbing route includes multiple bends and elbows. All variants are fitted with high quality shaft seals, and supplied with high quality braided connection hoses and filter washers. Choose from 1.5 bar and 2.0 bar pressure twin ended and 2.0 bar pressure single ended pumps.The Grundfos STR2 Regenerative shower pump replaces the old style centrifugal Niagara Shower Pump, the Grundfos Nile and the Watermill Wasp 50, 66 and PR50D pumpsFeatures include:Continuously rated pumpRegenerative impeller designIPX2 water ingress protectionAuto-resetting thermal cutoutAnti-vibration feetMains connection lead 1.5m longBraided connection hoses with 22mm push-fit connections2 year warranty.