GAF Master Flow 16 in. x 8 in. Automatic Open/Close Foundation Vent Black Resin Construction, Reduces Moisture, Prevents Decay, 57 sq. in. NFA UV Resistant, Easy Installation – FVRABL-Fast Shipping

Description

Hi-density polyethylene construction. Auto-open at 70 degrees Fahrenheit, closes at 40 degrees to lower risk of frozen pipes and save energy. Replaces manual vent. Snap-in installation. 57 sq. in. NFVA. 16” x 8”.

FOUNDATION VENTS

Color=Black

MASTERFLOW

AUTOMATIC – POLY , EA