Harris oxygen regulator with two pressure gauges mounted on a gr…

Close-up of a chrome and brass Harris two-stage oxygen regulator mounted on a green compressed-oxygen cylinder, with the high-pressure gauge reading roughly 2,000 psi and the delivery gauge near zero. The tank's yellow oxidizer hazard label and a green hose are visible, with a house and trees blurred in the background.

AI caption July 2006 · Photo 109 of 114