● Compatible with 4"air ducts
● For continuous operation in exhaust ventilation systems with low air resistance
● Durable ABS plastic casing and impeller with low-flammability, corrosion free and UV-resistant properties
● Reliable and low-watt electric motor is designed for continuous operation and requires no maintenance
● Motor is equipped with ball-bearing and thermal overload protection
● Smooth speed control with external thyristor speed controller
● Equipped with removable back valve to prevent reverse airflow
● Wall or ceiling mounting
● Suitable for operating temperature up to 130° F
● Supplied with factory prewired 120V/1.7' power cord, ready to plug in

CFM 61