# Axial Downblast Roof Exhaust Fan, Mounting Location Roof, Assembly Unassembled, Blade Diameter 20 in, Housing Material Steel, Exhaust Airflow @ 0.000 in SP 3,357 cfm, For High-Static Pressure Applications No, High-Efficiency Motor No, Maximum Static Pressure 3/8 in wc, Motor Enclosure Totally Enclosed Nonventilated, Motor Horsepower 1/3 hp, Nameplate Voltage 208/230/460V AC, Number of Speeds 1, Phase 3, Maximum Inlet Air Temperature 104 Degrees F, Number of Blades 6

**Manufacturer:** Dayton  
**MPN:** `7AD74`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Dayton |
| Manufacturer name | Dayton |
| Manufacturer | Dayton |
| CategoryId | 5128 |
| CategoryIdL1 | 30 |
| CategoryIdL2 | 4579 |
| CategoryIdL3 | 5128 |
| CategoryL1 | Heating & Cooling |
| CategoryL2 | Roof Ventilators |
| CategoryL3 | Belt Drive Hooded Axial Downblast Exhaust Ventilators |
| DimensionUnit | inch |
| UPC | None |
| Voltage | 208-230/460 |
| WeightUnit | lbs |
| height | 38.0 |
| height_Attrib | Overall Height - Roof Ventilators |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 48.0 |
| length_Attrib | Hood Length |
| moq | 1 |
| MPN | 7AD74 |
| multiple | 1 |
| qtyInStock | 0 |
| SKU | G0662636 |
| tierMinQty1 | 1 |
| tierPrice1 | 1749.99 |
| url | https://www.zoro.com/dayton-exhaust-ventilator-20-in-208-230460-v-7ad74/i/G0662636/ |
| width | 44.0 |
| width_Attrib | Hood Width |
| Blade Dia | 20 in |
| Base Size - Roof Ventilators | 24 1/2 in x 24 1/2 in |
| Overall Height - Roof Ventilators | 38 in |
| Overall Width - Roof Ventilators | 38 in |
| Dimension E | 23 in |
| Height (In ) | 38 |
| Bearing Size (In ) | 3/4 in |
| Width (In ) | 38 |
| Dimension B | 38 in |
| Dimension F (In ) | 8-1/2 |
| Dimension A (In ) | 24-1/2 |
| Dimension E (In ) | 23 |
| Base Square Size - Roof Ventilators | 24-1/2" x 24-1/2" |
| Dimension A | 24 1/2 in |
| Max Depth (In ) | 48 in |
| Dimension B (In ) | 38 |
| Dimension C | 48 in |
| Dimension C (In ) | 48 |
| Dimension D | 38 in |
| Dimension D (In ) | 38 |
| Propeller Dia (In ) | 20 |
| Dimension F | 8 1/2 in |
| Shaft Dia (In ) | 3/4 in |
| Base Diameter | Not Applicable |
| Blade Diameter | 20 in |
| Base Height | 23 in |
| Base Width | 24 1/2 in |
| Hood Width | 44 in |
| Hood Height | 16 in |
| Housing Length | 24.5 in |
| Propeller Shaft Diameter | 3/4 in |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G0662636 | 1749.99 | 1 | None | 1 |
| Grainger | 7AD74 |  |  | None | 1 |
| Raptor Supplies | AF3BEH | 2875.120326 | 1 | None | 1 |
| simsupply.com | ZO-G0662636 | 2029.67 | 1 | 42 | 1 |

---
Structured data: `/python/html6/product/500/238000000/238496000/part_--7AD74---Dayton--e6e347066b.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp