100 % polypropylene fiber media and pure polypropylene core. The Cartridge structure features excellent depth filtration due to good porosity. Maximum operating Temperature is 70°C . The nominal outer diameter is 63 mm and inner diameter is 27 mm. The Pore size is available : 1 , 5 , 10 , 20 , 50 & 100 µm. The Standard Length is available : 10" , 20" , 30" , 40". Generally maximum operating pressure is 1.70bar (24psi).