SGT Click-On Glass Indicating Oxygen Trap Back Catalog number: SGT-CO1021 Availability: In the manufacturer's stock Price on request - + Recommended CP17977 Gas Clean Carrier Gas filter kit (1/4in) 840,12 € BHT-2 Trap, Big Hydrocarbon, 1/8in 380,22 € BOT-2 Trap, Big O2, 1/8in 399,27 €