... the hot welding technique without binder Full polypropylene(PP) pleated water filter Technical Parameter: MaterialMediumPP fibre membraneFilter Core/cagePolypropylene (PP)Gasket ... rating0.1, 0.2, 0.45, 0.65, 1, 3, 5, 10, 20, 30, 60(um)Outer Diameter69mmFilter end cap (optional ... industryGas filtration / othersISO9001-2000 quality certificate Full polypropylene(PP) pleated water filter