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 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 24055 - 4-Way Manual Switching Valve with Diagonal Flow $222.14 820605 - Membrane, 25 mm, PTFE for Phase Separation and Debubblers, 10-pk $381.57 240370 - Backpressure cartridge, 20 psi $179.62 82063 - C type dialysis membrane, pre-mounted, 12-pk $226.39