Roof vent hood exhaust airflow 0.100 In sp 8 809 cfm hood height 16 in hood length 78 in hood width 72 in cutout length 43 1 2 in cutout width 43 1 2 in housing material steel assembly partially assembled compatible curb grainger part number 2zv85 3azj4 3c597 compatible damper grainger part number 6wrk7 mount type roof curb number of filters 0
