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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