Dayton ventilators are designed for situations requiring the steady exhaust or supply of air under low to moderate static pressures. Features include a fully rolled baffle bead for stability and ease of transport with spun aluminum hood construction. Galvanized venturi, inlet and supports. The NEMA 1 junction box is located in motor enclosure, inlet can handle temperatures up to 120ºF, and all units are UL/cUL listed Standard 705.