Shop › 79166 - Flow Cell Window Replacement Kit: 2 Teflon seals, 2 o-rings, 2 silica flow cell windows 79166 - Flow Cell Window Replacement Kit: 2 Teflon seals, 2 o-rings, 2 silica flow cell windows $103.10 FIAlab PN 791662 Teflon seals, 2 o-rings, 2 silica flow cell windows FIAlab PN 791662 Teflon seals, 2 o-rings, 2 silica flow cell windows Add To Cart Added! You Might Also Like 41220 - Pressure Lever Cassette/Cartridge for FIAlyzer-1000 Peristaltic Pump $183.88 820607 - Membrane, 25 mm, PTFE for Gas Diffusion, 12-pk $117.98 82060 - Polypropylene gas diffusion membrane tape kit (12-pk) $175.38 79150 - Flow Cell Window Replacement Kit: 6 Teflon seals and 2 silica flow cell windows $103.10 240370 - Backpressure cartridge, 20 psi $179.62