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 $370.46 FIAlab PN 820605 FIAlab PN 820605 Quantity: Add To Cart Added! You Might Also Like 820607 - Membrane, 25 mm, PTFE for Gas Diffusion, 12-pk $114.54 71015 - Cadmium Column for Nitrate Reduction (Package of two, second one 25% off) $536.34 79153 - Flow Cell Window Replacement Kit: 6 Teflon seals, 2 SMA connectors, 2 jam nuts, 2 silica flow cell windows $172.33 71011 - Ion Exchange Column for MTB Sulfate $370.46 82060 - Polypropylene gas diffusion membrane tape kit (12-pk) $170.27