Polycarbonate drying Column dries air and gas to a dew point of -100°f at up to 90 psi. Connect the Column in-line between a dryer or Desiccator and a compressed air line or gas cylinder; handles a flow of 200 liters per hour or 0.1 cfm. Measures 11-3/8 inch H x 2-5/8 inch dia. Column is made up of a plastic cap, 303 stainless steel desiccant supports and coil springs, felt filters, and O-Ring gasket. Inlet and Outlet ports accept 1/4 inch to 3/8 inch ID tubing. Absorbs up to 50 G of moisture. Drying Column comes filled with 1-1/4 lb of 8 mesh indicating desiccant (anhydrous calcium sulfate). order additional desiccant separately at left.