Used to open and close shutters when exhaust fan operates.
Used on end bows. Bends with curve of bow and needs to be Tex screwed every 12″. Cut polycarbonate to fit curve of bow. Slip polycarbonate into flange. Roof poly fastens to C-channel with stainless steel spring wire. 8′ long. Can be UPS or Fed Ex shipped. 3 lb each.