Shop › 820605 - Membrane, 25 mm, PTFE for Phase Separation and Debubblers, 10-pk 820605 - Membrane, 25 mm, PTFE for Phase Separation and Debubblers, 10-pk $381.57 FIAlab PN 820605 FIAlab PN 820605 Add To Cart Added! You Might Also Like 71011 - Ion Exchange Column for MTB Sulfate $381.57 820607 - Membrane, 25 mm, PTFE for Gas Diffusion, 12-pk $117.98 82060 - Polypropylene gas diffusion membrane tape kit (12-pk) $175.38 53004 - Valve Rotor: 6-port injector, Valcon E2 $109.48 79167 - Flow Cell Window Replacement Kit: 2 Teflon seals, 2 o-rings, 2 SMA connectors, 2 jam nuts, 2 silica flow cell windows $177.50