5 LAYERS FILTRATION including : Inermost layer : 30g non-woven filter 4th layer:� 30g non-woven filter 3th� layer:� 25g non-woven filter 2th layer:� 25g non-woven filter Outer layer: 50g non-woven filter 10pcs/color box; color box size:13*8*13cm 80boxes/carton;carton size:55*55*42cm 20GP: 200 CTNS 40GP: 420 CTNS 40HQ: 504 CTNS
