insulated duct with VF Couping

easy to installation

Main material: the flame-resistant ,static -free pvc net fabric,outside is elastic helix steel wire inside there is a lay of aluminum foam,with the strong points of reducing heat wasting reduction,low wind resistance,good nosie elimination,energy saving,environment protection ect.

Main specification: diameter(100mm~1500mm, 4"~60"); length(1m~30m,30'~100' )