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Flexible uninsulated ducts ATCO 356mm

Fully flexible non-insulated air duct constructed from multiple layers of aluminized polyester laminated with flame retardant adhesive to encapsulate a high carbon, spring steel wire helix.
ATCO 501 installs easily on circular or oval fittings and has an ait tight construction with smooth interior surface for low friction loss and lower operating cost.
For temperatures -15oC to + 82oC
Operating velocity 20m/sec
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