We are offering bead foam filter media. expandable polystyrene bead foam filter(eps beam foam filter media), is a white bead-like particles which is made of the foaming of polystyrene suspension resin filled with liquefied petroleum gas. It is light filter whose bulk density is 10-40kg/cm3, aperture clearance rate is about 98%. bead foam filter media is a new filter material which can complete the coagulation, clarify, and filter processes of water in a container. It can be applied to water tow directly or other different kinds of water treatment equipment, also can sued to the water treatment system of ships.