Features: • 4″ square, 4-11/16″ square and 4″ octagon models • Covers gasketed with PVC foam material • Airtight knockouts • To maintain plenum seal, boxes do not have ground screw holes • Drawn steel construction
Maintain code-compliance in plenum areas with RACO’s airtight Plenum boxes. Gasketed covers and leak-free KO’s meet the most rigid code requirements