# Master Flow 4 in. Fresh Air Vent

**Brand:** [Master Flow](https://shop.coreranger.com/brands/Master%20Flow)
**SKU:** FAV4
**Price:** $27.88 · in stock
**URL:** https://shop.coreranger.com/product/master-flow-4-in-fresh-air-vent-100396937

## Specifications

| Spec | Value |
|---|---|
| Gauge | 30 |
| Model # | FAV4 |
| Material | Galvanized Steel |
| Duct Type | 4" Round |
| Insulated | No |
| Pack Size | 1 |
| Internet # | 100396937 |
| Returnable | 90-Day |
| Store SKU # | 288764 |
| Product Width (in.) | 7.5 in |
| Product Height (in.) | 6.5 in |
| Product Length (in.) | 12.5 in |
| Certifications and Listings | No Certifications or Listings |

## Description

Master Flow Fresh Air Vents come with a built-in screen to prevent bird entry. They can be used to vent a combustion system or anywhere fresh air intake is needed. Constructed of galvanized steel.

• Integrated screen prevents the entry of birds
• Steel design resists temperatures up to 390 F
• Galvanized exterior keeps corrosion away