16 In. X 17.50 In. Polypropylene White Octagonal Gable Vent
X 17.50 In. Novik’s 16 in. Provides optimal airflow while keeping weather and insects out. Includes an exclusive lock-on system that eases installation and has 3 locking positions – 3/4 in., 1 in., and 1-1/2 in.