4FL - Aluminum Return Grille

The 4FL - Aluminum Return Grille is a durable and efficient solution for returning air in HVAC systems. Featuring a robust construction of heavy extruded aluminum for both the blades and border, this return grille ensures long-lasting performance. The 4FL model includes one set of fixed blades with a 45-degree deflection, designed to effectively direct airflow. It also offers the option of an opposed blade damper with convenient slide adjustment accessible at the face of the register.

This return grille is characterized by its 1/2" blade spacing, with blades running parallel to the long dimension of the unit. Installation is simplified with the included #8 x 11/4” long Phillips flat head sheet metal screws, painted white for a seamless finish. Precise manufacturing ensures dimensional accuracy, with all dimensions guaranteed to be within ± 1/16”.

The 4FL - Aluminum Return Grille is ideally suited for a variety of commercial and residential HVAC projects. Its robust construction and efficient airflow capabilities make it a reliable choice for offices, schools, hospitals, and other settings where dependable air circulation is crucial. This product aligns with Masterformat Division 23 37 13, encompassing diffusers, registers, and grilles.