Dayton Square Axial Fan, 3-1/8" Width, 3-1/8" Height, 115VAC Voltage - 4WT40 12 Watts; 115 Volts AC; 30 CFM Height 3 1/8" Width 3 1/8" Depth 1 1/2" Electrical Connection = 12" Leads Bearings = Sleeve dBA 35; Mounting Holes On Center 2 13/16"