The Carter Hoffmann 18614-0321 Blower Wheel with a 3-3/4-inch diameter and a 1-7/8-inch by 5/16-inch center hole is a precision-engineered component designed to maintain optimal airflow in commercial kitchen and HVAC equipment. Built for counter-clockwise (CCW) rotation, this blower wheel efficiently moves air through heating or cooling systems, ensuring consistent temperature control... https://www.partsfe.co.uk/carter-hoffmann-18614-0321-blower-wheel-w-3-3-4-dia