Dayton Axial Fan,Square,3-1/8" H,31 CFM 2RTD3 - 1 Each
$28.39
Standard Square Axial Fan, Fan Shape Square, Mounting Eye O.C. 4 1/8 in, Height 4 3/4 in, Depth 1 1/2 in, Width 4 3/4 in, CFM @ 0.000-In.