Shop › 240370 - Backpressure cartridge, 20 psi 240370 - Backpressure cartridge, 20 psi $174.39 FIAlab PN 240370 FIAlab PN 240370 Quantity: Add To Cart Added! 792101 - Backpressure coil, 120" of 0.02" ID tubing $92.87 Add To Cart 792102 - Backpressure coil, 240" of 0.02" ID tubing $132.09 Add To Cart 792104 - Backpressure coil, 480" of 0.02" ID tubing $190.90 Add To Cart You Might Also Like 820607 - Membrane, 25 mm, PTFE for Gas Diffusion, 12-pk $91.84 53004 - Valve Rotor: 6-port injector, Valcon E2 $106.29 79166 - Flow Cell Window Replacement Kit: 2 Teflon seals, 2 o-rings, 2 silica flow cell windows $100.10 79153 - Flow Cell Window Replacement Kit: 6 Teflon seals, 2 SMA connectors, 2 jam nuts, 2 silica flow cell windows $172.33 79165 - Lachat Adaption Kit (For QuikChem Series) $34.03