CSS No-Cut Joist Ceiling Shutter comes standard with Comfort Aide direct drive whole house fans
- Heavy-duty extruded aluminum frames and louvers
- Polyethylene bearing for smooth, silent operation
- Shutters open and close automatically, keeping out air, insects, and dust
- White enamel finish
NO-CUT JOIST SHUTTER Opening Sizes: Installs centered on a joist with 16” or 24” centers. Cut two openings, one on each side of the center joist per shutter model.