HOG D3 Din, environmentally sealed, balanced diaphragm first stage with the HOG Classic 2nd stage (balanced, adjustable regulator with venturi assist lever) on a 40" LP hose with 2" brass/glass SPG on a 9" HP hose... perfect bailout/stage bottle regulator or easy enough to add an octo and build a single tank setup. Regulator has been inspected, tested and tuned and it is dive ready.
