Prosaunas Thermo-Aspen, Sauna, Ventilation Hatch, .5" x 5.2" x 11"

This ventilation hatch by PROSAUNAS regulates airflow into the sauna, circulating good heat. Proper venting aids in keeping your sauna fresh and smelling clean. Natural Thermo-Aspen wood offers a non-toxic, light-weight, eco-friendly material.