Gravity Vent, 20 In, Base 24 1/2 In Sq
| Item - Roof Ventilators | Gravity Ventilator |
|---|---|
| Style - Roof Ventilators | Low Profile |
| Blade Dia. | 20 in |
| Base Size - Roof Ventilators | 24-1/2 in x 24-1/2 in |
| CFM/Throat Velocity @ 0.050-In. SP Gravity Relief | 1782/509 |
| CFM/Throat Velocity @ 0.050-In. SP Gravity Intake | 1599/457 |
| CFM/Throat Velocity @ 0.250-In. SP Gravity Relief | 3985/1139 |
| CFM/Throat Velocity @ 0.250-In. SP Gravity Intake | 3480/994 |
| Recommended 12 3/8"H Roof Curb Item No. | 2ZV83 |
| Recommended 12 In. Fixed Curb Item No. | 3FLT5 |
| Recommended Gravity Backdraft Damper Item No. | 3HHL6 |
| Dimension F (In.) | 16 |
| Overall Height (In.) | 38 |
| Dimension C (In.) | 48 |
| CFM/Throat Velocity @ 0.200-In. SP Gravity Intake | 3112/889 |
| Max. Intake CFM/Throat Velocity | 5500/1571 |
| Dimension H | 10-1/2 in |
| Dimension D | 38 in |
| Depth (In.) | 48 |
| CFM/Throat Velocity @ 0.125-In. SP Gravity Intake | 2461/703 |
| Dimension E (In.) | 22 |
| Dimension G (In.) | 11-1/2 |
| Dimension F | 16 in |
| Dimension C | 48 in |
| CFM/Throat Velocity @ 0.125-In. SP Gravity Relief | 2818/805 |
| Base Width (In.) | 24-1/2 |
| Item | Roof Vent Hood |
| Dimension E | 22 in |
| CFM/Throat Velocity @ 0.100-In. SP Gravity Relief | 2520/720 |
| CFM/Throat Velocity @ 0.100-In. SP Gravity Intake | 2201/629 |
| Dimension D (In.) | 38 |
| Dimension G | 11-1/2 in |
| Construction Material | Galvanized Steel |
| Dimension A | 24-1/2 in |
| Dimension B (In.) | 44 |
| Dimension B | 44 in |
| Base Length (In.) | 24-1/2 |
| Width (In.) | 38 |
| CFM/Throat Velocity @ 0.200-In. SP Gravity Relief | 3565/1018 |
| Damper Size (In.) | 21 x 21 |
| Recommended 6 3/8"H Roof Curb Item No. | 4C454 |
| Dimension H (In.) | 10-1/2 |
| Dimension A (In.) | 24-1/2 |
| Fan Size (In.) | 20 |
| Overall Width | 38 in |
| Includes | Birdscreen |
| Overall Length | 44 in |
| Overall Height | 38 in |
| Exhaust Airflow @ 0.250 in SP | 3,985 cfm |
| Base Width | 44,585 in |
| Housing Material | Steel |
| Mount Type | Roof Curb |
| Ventilation Type | Exhaust, Supply |
| Blade Diameter | 20 in |
| Assembly | Partially Assembled |
| Housing Finish | Galvanized |
| Maximum Inlet Air Temperature | 104 Degrees F |
| Supply Airflow @ 0.250 in SP | 3,480 cfm |
| Supply Airflow @ 0.100 in SP | 2,201 cfm |
| Number of Filters | 0 |
| Maximum Airflow | 5,500 cfm |
| Supply Airflow @ 0.125 in SP | 2,461 cfm |
| Base Length | 44,585 in |
| Base Height | 22 in |
| Hood Type | Hinged Hood |
| For Air Type | Clean Air |
| Housing Length | 24-1/2 in |
| Airflow @ Static Pressure | 1,599 cfm @ 0.050 in SP (Gravity Intake), 1,782 cfm @ 0.050 in SP (Gravity Relief), 2,201 cfm @ 0.100 in SP (Gravity Intake), 2,461 cfm @ 0.125 in SP (Gravity Intake), 2,520 cfm @ 0.100 in SP (Gravity Relief), 2,818 cfm @ 0.125 in SP (Gravity Relief), 3,112 cfm @ 0.200 in SP (Gravity Intake), 3,480 cfm @ 0.250 in SP (Gravity Intake), 3,565 cfm @ 0.200 in SP (Gravity Relief), 3,985 cfm @ 0.050 in SP (Gravity Relief) |
| Housing Width | 24-1/2 in |
| Exhaust Airflow @ 0.100 in SP | 2,520 cfm |
| Cutout Width | 23-1/2 in |
| Exhaust Airflow @ 0.125 in SP | 2,818 cfm |
| Hood Width | 48 in |
| Hood Height | 16 in |
| Damper Size | 21 in x 21 in |
| Hood Length | 44 in |
| Cutout Length | 23-1/2 in |
| Country of Origin (subject to change) | United States |
| Package Quantity | 1 |