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The BUILDMART 8x4 is a solid aluminum linear slot diffuser for ceilings, walls and floors. It works as either a supply or return vent and throws air in a 90-degree spread, with directional dampers you can set to one side. Its tested airflow figures and commercial-grade build put it above generic stamped-steel registers, though it is a non-filter model and the neck is smaller than the face. It suits remodelers and homeowners who want a clean architectural look and are willing to match duct openings to its 7 13/16" x 3 7/8" neck.
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This is an 8x4 white linear slot diffuser that works as a decorative vent cover. It can be used as a supply or return vent cover on ceilings, walls and floors. It is a non-filter model.
The body is commercial grade solid extruded aluminum with welding and an electrostatic paint finish. The paint resists dust, which makes it easy to clean. The design is modern and architectural, with clean lines and decorative directional dampers.
The diffuser shoots a 90-degree spread, and the air can be adjusted to one side or the other. Its performance was tested to ASHRAE-70 and ANSI S12.51/ISO 3741 standards by Airflow Sciences Corporation. For use as a return vent cover, set it fully open or remove the directional dampers. On a floor, it is decorative and not structural, so it should not bear weight.
