Feature●12 to 75 CFM PSC and Shaded Pole Blowers, Round Outlet●Motors have cast aluminum end shields for greater heat dissipation and protection, resulting in less downtime and longer service life.●Direct Replacement for many OEM blowers with same physical footprint●All-Position Mounting; Replaces 4C443●Min./Max operating Temp. Range: -20 Degree to 104 Degree FDescription Dynamically balanced, the Dayton 1TDP3 Blower mounts in any position and operates with minimal noise and vibration, to maintain CFM at higher static pressures. Motors have cast aluminum end shields for greater heat dissipation and protection, resulting in less downtime and longer service life.