Questions and Answers for Master Flow 16 in. x 8 in. Automatic Open/Close Foundation Ventilation Crawl Space Vent in Black
Internet # 202067979
Model # FVRABL
Store SKU # 466735
- 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