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DW1150X1150TO12DWSQRNDADPEC2ASY-2R-S-NS
Double Wall Duct - 11.50" X 11.50" To 12" SQ2RND Eccentric Adapter - 2 Layers Reduced Clearance - 15.50" X 15.50" To 16" Stainless Steel Outer Shell. Non-Standard Part 2 Week Lead Time.