Master Flow® Return Air Box Specs

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      Master Flow® Return Air Box Videos

      Strong
      strong
      30-gauge, zinc-coated galvanized steel construction provides durability
      Versatile
      Versatile
      Comes with an existing collar or allows you to cut your own opening and install a collar to attach pipe or flexible duct as needed
      Useful
      useful
      Used in a ceiling or wall application as an air return chamber
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