Roof & Attic Ventilation Fan Accessories & Parts

This roof curb adapter includes eight ¼"-20 tinnerman speed nut, eight ¼"-20 x ¾ bolts, and is made of steel. It measures 5 inch height. This roof curb adapter also has a galvanized finish.

This roof curb adapter includes eight ¼"-20 tinnerman speed nut, eight ¼"-20 x ¾ bolts, and is made of steel. It measures 5 inch height. This roof curb adapter also has a galvanized finish.

This roof fan motor conversion kit. This roof fan motor conversion kit is designed for use with the following applications: convert exhaust fan to variable speed fan. In addition, it has one phase, and 1 horsepower maximum.

This roof fan motor conversion kit. This roof fan motor conversion kit is designed for use with the following applications: convert exhaust fan to variable speed fan. In addition, it has one phase, and 1 horsepower maximum.

This roof fan motor conversion kit includes potentiometer to work as a speed controller that is attached directly to the motor. This roof fan motor conversion kit is designed for use with the following applications: convert exhaust fan to variable speed fan. In addition, it has one phase, and ½ horsepower maximum.

This roof fan motor conversion kit includes potentiometer to work as a speed controller that is attached directly to the motor. This roof fan motor conversion kit is designed for use with the following applications: convert exhaust fan to variable speed fan. In addition, it has one phase, and ½ horsepower maximum.

This roof curb includes damper tray, and is made of steel. It features flashing flange, one welded corner and measures 42½ inch width. This roof curb is designed for use with the following applications: 40 inch square base. In addition, it has a galvanized finish.

This roof curb includes damper tray, and is made of steel. It features flashing flange, one welded corner and measures 42½ inch width. This roof curb is designed for use with the following applications: 40 inch square base. In addition, it has a galvanized finish.

This roof curb includes damper tray, and is made of steel. It features flashing flange, one welded corner, wood nailer and measures 19 inch width. This roof curb is designed for use with the following applications: 16 inch square base. In addition, it has a galvanized finish.

This roof curb includes damper tray, and is made of steel. It features flashing flange, one welded corner, wood nailer and measures 19 inch width. This roof curb is designed for use with the following applications: 16 inch square base. In addition, it has a galvanized finish.

This roof curb includes damper tray, and is made of steel. It features flashing flange, one welded corner, wood nailer and measures 21½ inch width. This roof curb is designed for use with the following applications: 19 inch square base. In addition, it has a galvanized finish.

This roof curb includes damper tray, and is made of steel. It features flashing flange, one welded corner, wood nailer and measures 21½ inch width. This roof curb is designed for use with the following applications: 19 inch square base. In addition, it has a galvanized finish.

This roof curb includes damper tray, and is made of steel. It features flashing flange, one welded corner, wood nailer and measures 24½ inch width. This roof curb is designed for use with the following applications: 22 inch square base. In addition, it has a galvanized finish.

This roof curb includes damper tray, and is made of steel. It features flashing flange, one welded corner, wood nailer and measures 24½ inch width. This roof curb is designed for use with the following applications: 22 inch square base. In addition, it has a galvanized finish.

This roof curb is made of steel and it features a flashing flange. This roof curb is designed for use with the following applications: 16 inch to 21½ inch square base. In addition, it has a galvanized finish.

This roof curb is made of steel and it features a flashing flange. This roof curb is designed for use with the following applications: 16 inch to 21½ inch square base. In addition, it has a galvanized finish.

This roof curb adapter includes eight ¼"-20 tinnerman speed nut, eight ¼"-20 x ¾ bolts, and is made of steel. It measures 5 inch height. This roof curb adapter also has a galvanized finish.

This roof curb adapter includes eight ¼"-20 tinnerman speed nut, eight ¼"-20 x ¾ bolts, and is made of steel. It measures 5 inch height. This roof curb adapter also has a galvanized finish.

This roof curb adapter includes eight ¼"-20 tinnerman speed nut, eight ¼"-20 x ¾ bolts, and is made of steel. It measures 5 inch height. This roof curb adapter also has a galvanized finish.

This roof curb adapter includes eight ¼"-20 tinnerman speed nut, eight ¼"-20 x ¾ bolts, and is made of steel. It measures 5 inch height. This roof curb adapter also has a galvanized finish.

This roof curb adapter includes eight ¼"-20 tinnerman speed nut, eight ¼"-20 x ¾ bolts, and is made of steel. It measures 5 inch height. This roof curb adapter also has a galvanized finish.

This roof curb adapter includes eight ¼"-20 tinnerman speed nut, eight ¼"-20 x ¾ bolts, and is made of steel. It measures 5 inch height. This roof curb adapter also has a galvanized finish.

This roof fan motor conversion kit includes motor. It features completely assembled motor package, motor-mounted potentiometer for speed adjustment. This roof fan motor conversion kit is designed for use with the following applications: convert centrifugal upblast exhaust ventilator to energy-efficient variable speed direct, and more. In addition, it has one phase, and 1 horsepower maximum.

This roof fan motor conversion kit includes motor. It features completely assembled motor package, motor-mounted potentiometer for speed adjustment. This roof fan motor conversion kit is designed for use with the following applications: convert centrifugal upblast exhaust ventilator to energy-efficient variable speed direct, and more. In addition, it has one phase, and 1 horsepower maximum.

This roof curb adapter includes eight ¼"-20 tinnerman speed nut, eight ¼"-20 x ¾ bolts, and is made of steel. It measures 5 inch height. This roof curb adapter also has a galvanized finish.

This roof curb adapter includes eight ¼"-20 tinnerman speed nut, eight ¼"-20 x ¾ bolts, and is made of steel. It measures 5 inch height. This roof curb adapter also has a galvanized finish.

This roof curb includes damper tray, and is made of steel. It features flashing flange, one welded corner, wood nailer and measures 50½ inch width. This roof curb is designed for use with the following applications: 52 inch square base. In addition, it has a galvanized finish.

This roof curb includes damper tray, and is made of steel. It features flashing flange, one welded corner, wood nailer and measures 50½ inch width. This roof curb is designed for use with the following applications: 52 inch square base. In addition, it has a galvanized finish.

This roof curb includes damper tray, and is made of steel. It features flashing flange, one welded corner, wood nailer and measures 27 inch width. This roof curb is designed for use with the following applications: 24½ inch square base. In addition, it has a galvanized finish.

This roof curb includes damper tray, and is made of steel. It features flashing flange, one welded corner, wood nailer and measures 27 inch width. This roof curb is designed for use with the following applications: 24½ inch square base. In addition, it has a galvanized finish.

This roof curb includes damper tray, and is made of steel. It features flashing flange, one welded corner, wood nailer and measures 28½ inch width. This roof curb is designed for use with the following applications: 26 inch square base. In addition, it has a galvanized finish.

This roof curb includes damper tray, and is made of steel. It features flashing flange, one welded corner, wood nailer and measures 28½ inch width. This roof curb is designed for use with the following applications: 26 inch square base. In addition, it has a galvanized finish.