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The Duro Dyne 21020 is a stackable TDC corner made from 16-gauge steel that reinforces transverse duct connections and assists in joining duct sections. Each corner measures 4.055 in L x 1.225 in W and is packaged 250 pieces per box. The part is intended for use in corner insertion machines and for TDF/TDC connections; fasteners are sold separately.
Stackable 16-gauge steel TDC corner, 4.055 in x 1.225 in, 250 pieces per box, intended for TDF/TDC corner insertion machines
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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