This thin, highly porous PTFE membrane is inert to most chemically aggressive solvents, strong acids, and bases that may be incompatible with supported PTFE filters. Ideal for sterilizing gases because it will trap aqueous aerosols on the surface. Operating temperature range: –120 to 260°C (–184 to 500°F). $ 216.00 - $ 454.00USD / Pkg of 100.