Adapter Frame for 18 In. Exhaust Fans - R-Panel Metal Building Installation (IF18/IF18R) Part_Domes High velocity airflow up to

High velocity airflow up to 9

greenhouses

3 speed operation with pull chain control

oscillating pedestal and wall mount fans

Adapter Frame for 18 In. Exhaust Fans - R-Panel Metal Building Installation (IF18/IF18R) Part_Domes High velocity airflow up toThis adapter frame is the ultimate professional solution for installing your 18 in. wall exhaust fan (sold separately) onto your corrugated metal building. Designed specifically for buildings with ridged panels, this one piece frame is fabricated from a durable high density EPS on one side, which molds to the R panel ridge pattern on your building exterior, allowing you to seal gaps for a more watertight, draft free, and pest proof install on your