# Master Flow CFM Mill Power Roof Mount Attic Fan — Weathered Wood

**Brand:** [Master Flow](https://shop.coreranger.com/brands/Master%20Flow)
**Color/Finish:** Weathered Wood
**Price:** $146.21 · in stock
**URL:** https://shop.coreranger.com/product/master-flow-cfm-mill-power-roof-mount-attic-fan-310994836/weathered-wood
**Parent product:** [Master Flow CFM Mill Power Roof Mount Attic Fan](https://shop.coreranger.com/product/master-flow-cfm-mill-power-roof-mount-attic-fan-310994836)

## Specifications

| Spec | Value |
|---|---|
| Features | Built-in Screen,Thermostat Controlled |
| Material | Galvanized Steel |
| Power Type | Electric Powered |
| Returnable | 90-Day |
| Voltage (V) | 120 V |
| Color Family | Silver |
| Color/Finish | Silver |
| Airflow (CFM) | 1000 |
| Intake/Exhaust | Exhaust |
| Wattage (watts) | 160 |
| Ventilation Type | Roof |
| Mounting Position | Roof Mount |
| Product Width (in.) | 25 in |
| Recommended Sq. Ft. | 1600 |
| Product Height (in.) | 9 in |
| Coverage Area (Sq.Ft) | 1600 |
| Manufacturer Warranty | 5-year Limited Parts/2-year Labor Warranty |
| Cut-Out Diameter (in.) | 15 |
| Net-Free Area (Sq. In.) | 480 |
| Rough Opening Width (in.) | 15 in |
| Rough Opening Height (in.) | 15 in |

## Description

The GAF Master Flow ERV4 Power Roof Vent is a great overall investment in attic ventilation. It can quickly remove a larger volume of hot and/or humid air from your attic when compared to static ventilation. This in turn can help save money on your heating and cooling costs. The ERV4 model Power Roof Mount Vent can move air at a rate of up to 1000 cu. ft. per minute. It is designed for attic spaces up to 1600 sq. ft.

• Attic fan helps cool  up to 1,600 sq. ft. of attic space
• Compact fan size with hemmed dome for a sleek look
• High efficiency attic fan motor with adjustable thermostat