This 750 x 400mm return air box provides a compact, robust solution for ducted HVAC return air. Constructed from galvanised steel, it resists corrosion and supports grille mounting. Two 350mm beaded spigots offer quick, secure connections to flexible ducting and help distribute return airflow evenly. Ideal for ceiling installations and plantrooms in residential and light commercial projects. Confirm spigot layout, grille size, and accessible clearances before installation to ensure optimal airflow and maintenance access.

• 750 x 400mm face; 2 x 350mm round spigots for flex duct,Durable galvanised steel plenum for return air grilles

$80.00

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