MERLIN Pentair Reverse Osmosis System PRF-RO. TDS is currently 004 before di-resin. But comes with a set of brand new filters. Plus some new spare parts and seals. This item is in the category "Home, Furniture & DIY\Household & Laundry Supplies\Cleaning Tools\Squeegees & Window Cleaning". The seller is "allwrighttim" and is located in this country: GB. This item can be shipped to United Kingdom.