Diffuser System Diffuser Type Diffuser System Air Flow Rate (Maximum) 3.2 cfm Air Flow Rate (Minimum) 158 scfm Active Surface Area 452 sq ft Minimum Depth Required 8 ft Bubble Type Fine Bubble Size 3 to 5 mm Number of Air Tubing Rolls 2 Number of Compressors 1 Air Tubing Roll Length 100 ft Air Tubing Diameter 3/8 in Cabinet Depth 12 in Cabinet Height 12 in Cabinet Width 12 in Compatible with Media Type Freshwater Compressor Mount Material Powder Coated Aluminum