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By Raco 

Catalog ID: 250PL

By Raco
Catalog ID:  250PL
4-11/16 in. Plenum Box Extension, 1-1/2 in. Deep, Eight 1/2 in. and Four 3/4 in. Knockouts
  • Available in 4 in. square, 4-11/16 in. square and 4 in. octagon models
  • Covers gasketed with PVC foam material
  • Airtight knockouts
  • To maintain plenum seal, boxes do not have ground screw holes
  • Drawn steel construction
  • UL Listed

Product Details


Application 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.
Drawn or Welded Drawn
Knockouts 1/2 in;3/4 in
Type Box
UPC 050169994320


Cubic Capacity 30
Depth 1.5 in

Certifications and Compliance

Certified Listed UL Listed


Carton Quantity 25
Pallet Quantity 1650

Resources and Downloads


Sales Drawings

Terms and Conditions