Modular steel diffuser - DCR Click here for SUBMITTAL Modular steel DCRA and aluminum DCRL diffuser with 24” circular frame, front circular baffle plate, aerodynamic box that allows more efficient 360° air distribution, and circular neck for flexible duct connection Finish Options:Standard White baked electrostatic paint (polyester) for a clean, polished look. Optional finishes include Matte Black and Gray aluminum at no extra cost. Available Sizes: Neck sizes range from 6” to 14”, accommodating various duct dimensions. Durable Material Options: The models are constructed in aluminum for lightweight durability or steel for added strength. Aluminum models are engineered for enhanced resistance and precision matching to steel designs Applications:It is ideal for commerce and office, and where a uniform appearance is required for different air volumes. Clean appearance.