The Cedar Circular Air Ventilation Louver (5 3/4'' Diameter) is an essential addition to your sauna, designed to improve air circulation and create a more comfortable atmosphere. Crafted from high-quality cedar, this louver is both functional and aesthetically pleasing. It features a threaded design, allowing you to easily open or close the vent as needed. This louver works best with a 4 11/16" diameter hole and is ideal for maintaining optimal air flow in your sauna.