SGT Click-On Glass Indicating Oxygen Trap Back Catalog number: SGT-CO1021 Availability: In the manufacturer's stock Price on request - + Recommended CP17973 Gas Clean Filter Carrier Gas 311,65 € CP742211 Single Bed Pencil Filter With Ferrules 158,53 € BHT-2 Trap, Big Hydrocarbon, 1/8in 380,10 €