Scuba Max's Adjustable Octopus OT-4X

ADJUSTABLE DOWN STREAM DEMAND VALVE WITH EXTERNAL AIR INTAKE ADJUSTMENT 155 PSI MAXIMUM INTERNEDIATE PRESSURE 0.02.0 CIW (COLUMN INCHES OF WATER) INHALATION EFFORT 1.1 CIW EXHALATION EFFORT 30 + SCGM (AIR SUPPLY: 3000 PSI