The GAF Master Flow Slider style foundation vent allows air circulation to reduce moisture and helps prevent decay in your foundation crawl space. It has a net free vent area of 40 sq. in. Item requires mortar to install. The product is polypropylene, includes a screen and fits a standard 16 in. x 8 in. foundation vent opening. The slider adjusts manually to open and close.
- Plastic resin foundation vents slider with lintel
- Easy to operate slide action – adjusts manually
- For brick, block or frame construction
- Installs with mortar
- 40 sq. in. (NFA) net free area



















Reviews
There are no reviews yet.