The S Series on inline exhaust fans provide the power and flexibility needed for residential and commercial applications. The S Series Can-Fans are available in sizes 4", 6" and 8".
Can Fan Can S Fan 4", 120 CFM Questions & Answers
Q: What fans can I use a fan speed controller with?
A: Our fan speed controller (ACSC) will work with brushless motors, such as the ones commonly used with inline centrifugal fans. Do not use with blowers, booster fans, etc.