| Adj. 12 3/8"H Roof Curb Stock No. | 2ZV83 |
| Adj. 6 3/8"H Roof Curb Stock No. | 4c454 |
| Adj. UL 762 Kitchen Roof Curb Stock No. | 4HX62 |
| Base Height | 1 3/4 in |
| Base Length | 30" |
| Base Size - Roof Ventilators | 30 in x 30 in |
| Base Width | 30" |
| CFM Range | 2779 to 5943 @ 0.5 in SP |
| Country of Origin (subject to change) | United States |
| Dimension A | 30 in |
| Dimension B | 35 3/8 in |
| Dimension C | 34 3/4 in |
| Dimension D | 21 in |
| Drive Package With Motor Included | No |
| Drive Type | Belt |
| Drive Type - Roof Ventilators | Belt Drive |
| Duty Rating - Roof Ventilators | Standard |
| Fixed Severe Duty 24"H Roof Curb Item No. | - |
| Fixed UL 762 Kitchen Roof Curb Stock No. | 4HX57 |
| Housing Material | Spun Aluminum |
| Includes | NEMA 1 Junction Box |
| Item | Upblast Ventilator |
| Item - Roof Ventilators | Upblast Ventilator |
| Max. Inlet Temp. | 300 Degrees |
| Motor HP Range | 1/2 to 3 |
| Mounting Location | Roof |
| Mounting Location - Roof Ventilators | Roof |
| Number of Speeds | 1 |
| Overall Dia. | 35 3/8 in |
| Overall Height | 34 3/4 in |
| Recommended 12 In. Fixed Curb Item No. | 2RB79 |
| Recommended 8 In. Fixed Curb Item No. | 4HX41 |
| Recommended Damper Size (In.) | 23 x 23 |
| Recommended Damper Stock No. | 4HX67 |
| RPM Range | 880 to 1600 |
| Shaft Dia. Sheave End | 1 in |
| Shaft Dia. Wheel End | 1 in |
| Standards | UL/cUL 762, AMCA Sound & Air |
| Stock No. | 1MBF2 |
| Wheel Dia. | 21 1/4 in |
| Wheel Material | Aluminum |
| Wheel Type | Backward Inclined Centrifugal |
