... 0.6um, 1um, 5um, 10um, 50um, 100um....;2. micron filter cartridge length : 5'', 10'', 20'', 30'', 40'';3. membrane pleated ... filter cartridge media: polypropylene;4. end caps: DOE,-222flat, -222fin, -226flat, ... a. 100% pure polypropylene construction; b. wide chemical compatibility; c. no lubricants or anti-static additives; d. excellent dirt holding ...