Sheet Metal

Collars – Castellated

Fully insulated galvanised steel. Allows for connection of round flexible duct to square sheet metal or Polypanel duct.

Item #Size (mm/inch)
444005150/6
444006200/8
444007250/10
444008300/12
444009350/14
444010400/16
444011450/18
444012500/20
444013550/22

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