| Adj. 12 3/8"H Roof Curb Stock No. | 2ZV82 |
| Adj. 6 3/8"H Roof Curb Stock No. | 4c453 |
| Agency Compliance | AMCA Sound & Air, UL/cUL 705, CSA Certified Motor |
| Assembled/Unassembled | Assembled |
| Base Height | 1-3/4" |
| Base Length, Base Width, Dimension A | 19" |
| Base Size - Roof Ventilators | 19 in x 19 in |
| Base Square Size - Roof Ventilators | 19" x 19" |
| CFM @ 0.000-In. SP | 398/493/588 |
| CFM @ 0.125-In. SP | 307/420/528 |
| CFM @ 0.250-In. SP | 179/340/464 |
| CFM @ 0.375-In. SP | -/233/394 |
| CFM @ 0.500-In. SP | -/-/308 |
| CFM @ 0.625-In. SP | -/-/168 |
| CFM @ 0.750-In. SP | -/-/- |
| CFM @ 0.875-In. SP, CFM @ 1.000-In. SP, CFM @ 1.250-In. SP, CFM @ 1.500-In. SP | - |
| Country of Origin (subject to change) | Unknown |
| Dimension B, Overall Dia. | 21-3/4" |
| Dimension C, Overall Height | 14-5/8" |
| Dimension D | 4" |
| Drive Package Included, Drive Package With Motor Included, Speed Controllable | Yes |
| Drive Type | Direct-Drive |
| Drive Type - Roof Ventilators | Direct Drive |
| Duty Rating - Roof Ventilators | Standard |
| Housing Material | Spun Aluminum |
| Hz | 60 |
| Includes | NEMA 1 Junction Box |
| Item, Item - Roof Ventilators | Downblast Ventilator |
| Max. BHP | 0.02/0.04/0.06 |
| Max. Inlet Temp. | 130 Degrees |
| Max. Operating Amps | 1.25/1.54/1.89 |
| Motor HP, Motor HP - Roof Ventilators | 1/20 |
| Motor Voltage | 115 |
| Mounting Location, Mounting Location - Roof Ventilators | Roof |
| Number of Speeds | 3 |
| Phase | 1 |
| Recommended 12 In. Fixed Curb Item No. | 2RB75 |
| Recommended 8 In. Fixed Curb Item No. | 4HX38 |
| RPM | 1050/1300/1550 |
| Shaft Dia. Wheel End | 1/2" |
| Sones @ 0.125-In. SP @ 5 Ft. | 3.9/5.3/7.4 |
| Sones @ 0.250-In. SP @ 5 Ft. | 4.3/5.3/7.4 |
| Speed Control | 48C172 |
| Voltage - Roof Ventilators | 115 V AC |
| Wheel Dia. | 8 1/4 in |
| Wheel Material | Aluminum |
| Wheel Type | Backward Inclined Centrifugal |
