Weather hoods mount over exterior wall openings where compatible ventilation fans are installed. The hoods cover the openings and are angled to deflect rain and snow away from the fans. They also have a screen that keeps birds from entering the fans.

Housings install into wall openings to provide a mounting surface for compatible ventilation fans. They have a screen that shields the fans' motor and blades from objects and debris without restricting airflow. They also have an internal flange for mounting shutters and an external flange that serves as flashing to collect and drain away water from the wall opening.

Collars are slimmer than housings and install into wall openings to provide a mounting surface for compatible ventilation fans. They have an internal flange for mounting shutters and an external flange that serves as flashing to collect and drain away water from the wall opening.

These guards install on the intake side of compatible ventilation fans to help prevent objects and debris from entering the fans' motor or blades and damaging them. They can also help prevent personnel or animals from touching the fans' moving parts when fans are installed within their reach.

These frames can be paired with compatible motors and fan blades to build new fans. They are also known as venturi frames.

Belt tensioners help maximize the energy efficiency of compatible belt-drive exhaust fans by eliminating slip and torque losses caused by loose fan belts. These spring-loaded belt tensioners maintain the desired tension on fan belts, which helps minimize time spent on fan maintenance. The desired belt tension can be adjusted by loosening the bolt on the back of their bracket and moving the tensioners' arm. These belt tensioners can be used to replace existing belt tensioners on compatible fans.