Dec 08, 2021 · Nov 26, 2021 · Oct 29, 2021 · Certified 0.22 um ptfe filter South Africa South Africa PTFE 0.22 micron filter for solvents-Analytical Membrane filter OD=80MM,0.22 micron,made by PTFE,50pcs/LOT | eBay One of the major applications for the PTFE filter is the clarification of corrosives, solvents and aggressive fluids.