The double 4 inch fan tube adapter (order # FA 139A ) in the foreground will attach to both Marco Industries Inc. and Dayton 465 cfm blowers. The single 4 inch fan tube adapter (order # FA 139 ) in the left-hand background will attach to both Marco Industries Inc. and Dayton 265 cfm blowers. The single 4 inch fan tube adapter (order # FA 1391 ) in the right-hand background will attach to all our Air Cooled Reflectors. Simply take the louvered plates off the reflector and insert two of these 4 inch tube adapters. 4 inch flexible plastic or aluminum dryer ducting may be used.
