Hardware for saleThread title: RO unit And Phosban 550 reactor Location: benoni Shipping or Collection only: collection only All sales to be conducted on the thread. I agree Photo's and description/list of items for sale: Notes: Water boy RO unit . Cartridges don't need changing. R1100 Phosban 550 reactor no pump. Perspex misted up inside but in perfect working condition. R1200.