Concentric Supply / Return Square Diffusers
Concentric supply & return square diffuser, also known as Combined square diffuser, offers a practical solution for applications requiring single-outlet air distribution. Combining supply and return functions in a single unit, it delivers equal air distribution across all four sides using directional vanes, while the central return ensures efficient airflow with low pressure drop and minimal noise. This dual functionality makes it an ideal choice for streamlined HVAC systems in modern spaces.
Description
Material: Crafted from high-quality extruded aluminum frame and blades for exceptional corrosion resistance and structural durability.
Removable Core: The core is secured with spring-loaded latches, allowing easy sideways removal for hassle-free maintenance.
Core Patterns:
1) Eggcrate option: Optimal for return air due to its highest free area and reduced visibility;
2) single/double deflection: Allows adjustable airflow patterns for varied distribution needs
Frame Options: Standard flanged, Wide Flanged, Beveled
Accessory Options: Can be paired with an integral plenum featuring dual inlets












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