Pure water reverse osmosis system. 4040 membrane replaced about 14 months ago 2x 20 pre filters 2x Di vessels 1 x high pressure pump Auto shut off 1x 25kg bag of 115 Di resin unopened 1000 litre water tank Additional 600l tank. Not 100% sure of the current tds as haven't got a metre and don't use the system anymore. Collection from Worthing West sussex. The item "Pure Water Window Cleaning System" is in sale since Saturday, January 30, 2021. This item is in the category "Home, Furniture & DIY\Household & Laundry Supplies\Cleaning Tools\Squeegees & Window Cleaning". The seller is "l18msf" and is located in Worthing. This item can be shipped to United Kingdom.