Cushion Boxes – 20mm Polypanel

Polypanel starter boxes, plenums and return air boxes are light, durable and easier to fit than traditional metal. They can be made in any sizes and are easy to handle and fit.

Polypanel products are widely accepted and currently in use in major domestic and commercial Projects. Comprising of closed cell polyisocyanurate foam enclosed in two layers of aluminium textured sheet, this product offers superior features and benefits to both the installer and end user, including light weight, strength, ease of fabrication, low vapour permeability and superior hygiene characteristics.


Item #Size (mm/inch)Spigot Size (mm/inch)
482547555x555x400 / 22x22x16150 / 6
482548555x555x400 / 22x22x16200 / 8
482549555x555x400 / 22x22x16250 / 10
482550555x555x400 / 22x22x16300 / 12
482551555x555x400 / 22x22x16350 / 14

Polypanel can be used in:

  • Hospitals
  • Commercial high rise buildings
  • Wineries
  • Domestic buildings and apartments
  • Pharmaceutical Cleanrooms
  • Factories/ Commercial Offices


  • Lightweight
  • Insulated
  • Easy to get into the roof
  • Easy to attach duct
  • A real time saver

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