Whitmore Air Sentry Model: L143 Dimension: 3.25'' DIA X 5'' LONG 1/2'' FNPT   Specifications: Height Inches (cm): 5.5 (14.0) Diameter Inches (cm): 3.25 (8.3) Both Ends Connection: 1/2" FNPT Silica Gel Lbs (kg): 0.8 (0.4) Carbon Weight Lbs (kg): N/A Maximum Adsorptions Capacity FL. Ounches (ml): 4.91 (145) Maximum Air Flow CFM: 10 Maximum Reservoir Fluid Flow GPM: 75 Type of Medium: 100% Silica Gel