Military Aerospace Oxygen Systems ABR-300 Oxygen Regulator HomeOxygen SystemsMilitary Aerospace Oxyge... RegulatorsABR-300 Oxygen Regulator The ABR-300 Advanced Breathing Regulator regulates oxygen to an aircrew member during flight. Based on the design of the highly successful US Navy standard CRU-103 regulator. Home Capabilities Customers Suppliers Careers News About Regulators Product Contacts USA Cobham Mission Systems, Davenport, USA 2734 Hickory Grove Road, Davenport, Iowa, USA 52804. Tel +1 563 383 6000 Fax +1 563 383 6430 Cobham Mission Systems Davenport LSS Inc. View location Contact office Cobham Mission Systems, Orchard Park, USA 10 Cobham Drive, Orchard Park, New York, USA 14127. Tel +1 716 662 0006 Fax +1 716 662 0747 Cobham Mission Systems Orchard Park Inc. View location Contact office