Shop › 41231 - Pressure Lever Cassette/Cartridge for FIAlyzer-FLEX Peristaltic Pump 41231 - Pressure Lever Cassette/Cartridge for FIAlyzer-FLEX Peristaltic Pump $162.01 FIAlab PN 41231 FIAlab PN 41231 Quantity: Add To Cart Added! You Might Also Like 79153 - Flow Cell Window Replacement Kit: 6 Teflon seals, 2 SMA connectors, 2 jam nuts, 2 silica flow cell windows $172.33 820607 - Membrane, 25 mm, PTFE for Gas Diffusion, 12-pk $91.84 71015 - Cadmium Column for Nitrate Reduction (Package of two, second one 25% off) $536.34 79166 - Flow Cell Window Replacement Kit: 2 Teflon seals, 2 o-rings, 2 silica flow cell windows $100.10 41220 - Pressure Lever Cassette/Cartridge for FIAlyzer-1000 Peristaltic Pump $178.52