Thank you for your question on the model L300 exhaust fan. There are two variable speed controls that can be used with the L300. The model 57W is a solid state speed control that would mount on the wall. There is also the model 80L solid state speed control that mounts inside the L300 unit housing for a more permanent speed control. Please contact the Technical Service Department at 800-637-1453 for further assistance.
Date published: 2014-04-23