Pina Rapid Sand Filters for Water Filtration Pina polyester rapid sand filters can be used in systems which turbidity must be decreased. It has super performance on swimming pool water. It removes suspended and total solids of water which have diameter of 15 to 25 micrometers while the flow passes through diameter of 0.5 mm to 1.5 mm sand bed.Pina polyester sand filters are made by cTP. Higher resistant polyester and fiber glass are used for extra strenght. Test pressure is 4 bar and operational pressure 1 to 1.5 bar.
