These Standard Twin pumps are designed to boost the incoming hot and cold water supply to an individual shower, bath, shower mixer or mixer tap. Suitable for positive head applications only. Whisper quiet technology Centrifugal Design Pressure efficient, Compact size Automatic Switching Flow switch automatically starts when the pump exceeds 0.8 litres/min Mechanical Seal Carbon/ceramic seal, Long Life Flexible Hoses 200mm anti vibration hoses G 3/4 threaded Anti Vibration Mat This shower pump anti vibration mat is ideal for noisy Shower Pumps.. High Density Foam provides sound absorption properties Specifically designed to reduce the noise from noisy shower pumps Fits easily beneath the pump and can be fitted to pumps already installed Size 208mm x 140mm x .