Master Flow Replacement Shutter for 24 in. Direct Drive Whole House Fan
$115$11500
The S24 is the replacement shutter for the GAF Master Flow 24 in. Direct Drive Whole House Fan (WHFS24M). It installs easily and is constructed of aluminum. The gravity louvers open when the unit it running and close when the unit shuts off.
Replacement Shutter for Master Flow WHFS24M
Felt-tipped louvers help reduce noise and vibration
