Usage: This 2.0CN twin impeller shower pump is designed to help boost your water pressure of both your hot and cold water supply to a single shower, bath, shower mixer or mixer tap. Compatibility: When you want to install a shower pump which is situated level or slightly above the cold water tank, then you need a negative head pump. It sucks water from the tank that feeds straight to your shower. Installation: Grundfos shower pumps are easy to install. Everything that you will need for installation is included for you. Motor: Continuously rated shower pumps effectively run until the user turns it off. This is ideal when the shower needs to be used frequently. Guarantee: This product comes with a fantastic 5 year guarantee so you can have complete peace of mind with your purchase., Manufacturer: Grundfos