PU filter foam 1.high efficient filter 2.material: eco-friendly foam 3.corrosion resistance foam pu filter foam Material:sponge Usage:used ... to filtering or clean dinnerware,tableware,house items,filter water,airbornepolyester filter foam1)Material:sponge2)Usage:used to filtering or ... clean dinnerware,tableware,house items,filter water,airborn dust, ect.3)Size:according to customer ...