vidaXL Pool Sand Filter with 4 Position Valve Blue 300 mmBy means of sand as a filter medium, this pool sand filter is effective in filtering and purifying the water of your pool. This is a considerably economical and low maintenance option to keep your pool water pristine. Made of high density polyethylene, the sand filter is highly durable. This filter is designed to achieve a flow rate of 7 m h. The maximum working pressure is 3. 5 bar. To start the operation, 19 kg of filter sand (not included) is