# Master Flow 16 in. x 8 in. Automatic Open/Close Foundation Ventilation Crawl Space Vent in Black

**Brand:** [Master Flow](https://shop.coreranger.com/brands/Master%20Flow)
**SKU:** FVRABL
**Price:** $35.97 · in stock
**URL:** https://shop.coreranger.com/product/master-flow-16-in-x-8-in-automatic-open-close-foundation-ventilation-crawl-space-vent-in-black-202067979

## Specifications

| Spec | Value |
|---|---|
| Shape | Rectangular |
| Model # | FVRABL |
| Features | Automatic Shutter,Built-in Screen,UV Resistant |
| Material | Resin |
| Internet # | 202067979 |
| Power Type | Non-Powered |
| Returnable | 90-Day |
| Store SKU # | 466735 |
| Color Family | Black |
| Color/Finish | Black |
| Automatic/Manual | Automatic |
| Product Width (in.) | 17.5 in |
| Product Height (in.) | 9.25 in |
| Product Weight (lb.) | 2.5 lb |
| Rough Opening Width (in.) | 16 |
| Rough Opening Height (in.) | 8 |

## Description

The GAF Master Flow 16 in. x 8 in. Resin Automatic Foundation Vent in Black helps to reduce moisture and helps prevent decay in your foundation with a net free vent area of 57 sq. in. The vanes are factory set to automatically open fully at 70°F and close fully at 40°F. The UV resistant resin constructed unit easily slips into place and is held in place by tightening the 4 screws in the face of the unit.

• Automatic foundation vent opens at 70°F, closes at 40°F
• Helps prevent foundation decay; lowers risk of frozen pipes
• Replaces manual vent with snap-in installation