This 20 IN, 20 micron Full Flow 4 1/2 inch outside diameter sediment depth cartridge is made of melt blown polypropylene material and has an excellent chemical resistance with no media migration. It is made of a high quality food grade material for food and beverage applications with a high dirt holding capacity. It is great for potable water, beverages, pre-filtration, fine chemicals, electronics, plating solutions, metal finishing, and more. This filter is rated for temperatures up to 140 F (60 C) and water pressure up to 40 PSI.