Loren Cook Company’s Tubular Centrifugal Inline fans are available in direct drive sizes from 60 to 165, and belt drive sizes from 60 to 490 in both standard and heavy-duty construction. TCN performance ranges from 50 CFM to 52,000 CFM and static pressures up to 5 inches. With a full range of mounting options and accessories, the TCN is an effective alternative for round duct installations requiring high flow rates at low to moderate static pressures.