MERLIN Pentair Reverse Osmosis System 720 Gpd. Results are 75tds using a booster pump. The booster pump is not included in the sale. The carbon filter is only a month old. The two membranes are about 2 years old.Fills 1000 litres in four hours using booster pump. As shown in the photo the back has come off but this does not effect anything. This item is in the category "Home, Furniture & DIY\Household & Laundry Supplies\Cleaning Tools\Squeegees & Window Cleaning". The seller is "warren3997" and is located in this country: GB. This item can be shipped to United Kingdom.