Wall: High density polyester weave coated PVC on both sides

Spiral: Reinforced steel wire

Exterior spiral cover: PVC strip


PVC coated polyester fabric tunnel ventilation duct hose,As ventilation duct hose ideal for:

● Widely used in these working environment such as airport, tunnel,basement, waste gas exhaust out

● Air conditioning and ventilation of fumes, light duty dust extraction,and air movement

● As a flexible connection between grilles diffusers, fans and other air movement units


● Highly flexible

● Flame retardant

● Could be compressible and easy to carry

● Oil, Acid &Alkali Resistant

● Very small bending radius

● Kink proof

● Polyester fabric coated with PVC is leakage resistant

● Steel wire spiral is abrasion resistant with strip cover

● Various colors are available

Working temperature range: -20℃ to +80℃


Inner Diameter: 4″-48″

Length:  20m/roll