The Metal Grille/Register Vent Set (4" x 10") is an essential component for enhancing the airflow in your sauna. Designed to fit a standard 4" x 10" opening, this set includes both a metal grille and a register, ensuring efficient ventilation to create a comfortable sauna atmosphere. The durable metal construction offers long-lasting performance, making it a reliable choice for maintaining optimal air circulation. Whether used as a lower intake or upper exhaust vent, this set is key to regulating the air within your sauna.