https://www.ebay.com/sch/i.html?_nkw=Allegro+9520+33M+Conf+Sp+Fan+Kit+Axial+1+3+Hp&_sacat=0&_dmd=2

Allegro 9520-33M Conf. Sp Fan Kit, Axial, 1/3 Hp

Regular price
$867.00
Sale price
$639.00

Confined Space Fan Kit, Axial, 1/3 HP, Duct Dia. 8 In, Material Polyethylene, Blower/Fan Speed 3200 rpm, Maximum Flow in Free Air 831 cfm, Voltage 115VAC, Amps 3, Color Orange, Length 13-1/4 In, Width 12 In, Height 13-3/4 In, Standards UL Listed, CSA Certified, Includes Low Profile Manhole Air Vent (MVP), 90 Degree Elbow, And Built-In Mounting