4″ Insulated Duct – Crayflex Polyester and Aluminum Strong, Light Weight Flexible Duct for Air Conditioning and Ventilation Systems (M1B 4in,25ft Length)

Description

• MATERIAL: Made of tough polyester, permanently bonded to a spring steel wire helix, and colored black. The strong outer insulation jacket/vapor barrier is made of metalized polyester film laminate
• DIMENSION: Flexible duct has 4 diameter and measurement of 76 x 17 x 17 in cm approx
• SUITABILITY: Ideal for all Air Conditioning / Ventilating System including Hospitals, Hotels, Commercial and Office Buildings, and many other Industrial and Residential applications
• FEATURES: It has major benefits like tear puncture-resistant construction, low operating cost, No air leakage and compressed ducts reduce freight and storage costs
• QUICK INSTALLATION: Spring steel wire helix assures dimensional stability, resists mechanical abuse and provides more efficient air distribution. Meeting British Standards BS 476 ODP value zero and GWP value less than 5