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Catalog ID: 257PL
4-11/16 in. Plenum Box, 2-1/8 in. Deep, Eleven 1/2 in. and Six 3/4 in. Knockouts
- Available in 4 in. square, 4-11/16 in. square and 4 in. octagon models
- Airtight knockouts
- To maintain plenum seal, boxes do not have ground screw holes
- Drawn steel construction
- UL Listed