4" Inch Aluminum Hose Flexible Air Duct Pipe for Rigid HVAC Flex Ductwork - 25' Feet Long

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  • High Quality: Aluminum Housing On the Outside and on the Inside For The Best Insulation Value
  • Air-tight Inner Core Decreases The Pressure Loss and Provides A More Hygienic Environment- High Energy Efficient / No fiberglass erosion into air stream.
  • Designed To Withold Bends And Sharo Turns WIthout Kinking
4" Inch Aluminum Hose Flexible Air Duct Pipe for Rigid HVAC Flex Ductwork - 25' Feet Long

This Aluminum Flex Duct is intended to be used in heating, cooling, ventilation and waste gases transmission lines. Suitable for medium pressure application.
It has an outer surface made of High Quality Aluminum Foil and an inner surface made of Metalized PET with inside high-tensile spring steel wire.
Great emphasis has been invested in the design of this product to prevent it from kinking in sharp bends & turns, and to hold steady and at full diameter in all applications.
All steel wire are applied between PET surfaces to prevent corrosion (oxidization).
Produced in accordance with ISO 9001 - 2008 Quality Management System.
Complies with industry standards of USA: ASTM D-882. European: EN 10270-1-SM. & EN 13180 standards.
By means of the smooth surface, which the interior PET provides, this flex duct decreases the pressure loss and provides more hygienic environment by preventing the formation of bacteria.

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