Half of the polycarbonate column is filled with 250 mL of indicating Drierite® producing a terminal dryness of 0.005 mg/liter. The other half contains 250 mL of 5 Å molecular sieves for removal of trace impurities. Total capacity is 500 mL. Both inlet and outlet fittings are 316 stainless steel, 1/8" Swagelock fittings. A 40-µm, 316 stainless steel outlet screen assembly prevents particulate migration. Drierite may be regenerated, or order the refill kit.