12 in. 28 ga Collar with Damper

Part #R31012  |  Item #3293749  |  Manufacturer Part #31012

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12 in
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Product Details

  • Collar is rolled formed Galvanized Steel and has 1 1/2" crimp and 3/8" convex bead for branch duct connection
  • Assembled with 1/8" x 1/8" zinc-coated steel rivets



ASTM Specifications: ASTM A653 CS Type B

Diameter: 12 in

Duct Shape: Round

Gauge: 30

Height: 6 in

Material: Galvanized Steel