Ducting 4" x 25'

Ideal for air cooling all Sun System® hoods. Also can be used in various heating, ventilating or exhausting applications. These Class 1 aluminum flexible air duct connectors are made from tough, puncture resistant 3 ply aluminum foil laminate & contain a high density, corrosion resistant wire helix in the duct wall for support. 

Now includes 2 stainless steel hose clamps in every box.  

4" x 25' ducting