Check the listing for details. 1960's USAF Aircraft Pilot, Crew Oxygen Diluter Demand Regulator Assembly. Condition: Used. Listed at 85.00 USD. 1960's USAF Aircraft Pilot, Crew Oxygen Diluter Demand Regulator Assembly This is a 1960's era USAF aircraft crewman's oxygen diluter demand regulator assembly with the pressure gauge, blinker and mounting bracket. It was manufactured by Bendix and it is in good condition for display use. Payment must be received within 7 days of auction close or high bidder loses all right to property. I will ship items by either FEDEX ground or USPS which ever is cheaper and I will combine multiple items to save shipping. I only charge actual postage as close as I can figure it without losing money. I don't charge any handling or packing fees. The Ebay shipping calculator may give you higher shipping prices than what it will actually cost, so if you are concerned about the shipping please ask.