Installed seasonally to prevent cold air from blowing back into the barn, the light weight, yet durable Ripstop nylon Caps include an integrated elastic band to seal around fan cones. The elastic band allows the Cap to fit a range of cone diameters from 36-60 inches (Large) and 61-85 inches (XL). Includes a loop to attach a cord for retaining the cover when the fan turns on and the cap blows off.
Internal elastic band provides self-adjusting fit
Two sizes self-adjust to fit a wide range of cone diameters
Retaining Cord prevents blowing away