Manual water softener - 12 LitreRobust construction and easy to install Simple to maually regenerate by flushing through a salt solution If the correct unit is used then regeneration should not be required more than once a week except in the hardest water areas 12 litre manual water softener Diameter 185mm Height 520mm Min water temp 4C Max water temp 55C Min water pressure 1. 7 bar Max water pressure 8 bar Connection BSP 3 4" male