... 30",40" 3.End Cap: 226Flat/Fin, 222Flat/Fin,DOE Air FilterFEATURE & BENEFITSA. The membrane of PTFE vent filter cartridges ... pure water B. Ultra pure electronic chemical solvent fermenter, storage tank, sterilized exhaust and intake in make-up tongs C. High ... electronic industry D. High pure steam E. Sterilized transport of compressed air F. Oxidizing gas and liquid fine filtration for solvent, liquor ...