Shop › 820607 - Membrane, 25 mm, PTFE for Gas Diffusion, 12-pk 820607 - Membrane, 25 mm, PTFE for Gas Diffusion, 12-pk $114.54 FIAlab PN 820607 FIAlab PN 820607 Quantity: Add To Cart Added! You Might Also Like 17047 - Bulb for HL-2000-LL $217.73 82066 - Membrane, dialysis, type C, for quick-release sandwich cell, 12-pk $451.98 71010 - Cadmium Column for Nitrate Reduction $306.48 53004 - Valve Rotor: 6-port injector, Valcon E2 $106.29 41220 - Pressure Lever Cassette/Cartridge for FIAlyzer-1000 Peristaltic Pump $178.52