6690 - Steel Perforated Return

The Krueger 6690 Steel Perforated Return is a durable and efficient solution for returning air in HVAC systems. This diffuser features a perforated face with precisely spaced 3/16” diameter holes on 1/4” centers, allowing for even air distribution. Constructed with a heavy-gauge steel backpan and a round neck, the 6690 ensures long-lasting performance in demanding commercial and industrial settings.

Designed for easy maintenance, the Krueger 6690 Steel Perforated Return features a hinged, removable face that simplifies access for cleaning and servicing. With a 51% perforated open area, this diffuser effectively returns air while minimizing pressure drop and noise levels. The 6690 is available in various frame styles and panel sizes to accommodate a wide range of project requirements.

Ideal for use in new construction and retrofit applications, the Krueger 6690 Steel Perforated Return is a reliable and versatile choice for optimizing HVAC system performance. This diffuser is categorized under Masterformat Division 23 37 13 – Diffusers, Registers, and Grilles, and is finished in a standard British White for a clean and professional appearance.