4″X25′ ALUM.POLY.FOIL FLX 1/BX ALUMINUM

Product Type: Ducts.

Type of Duct System: Flexible
Diameter: 4 in
Length: 25 ft
Min. Operating Temperature: -20? F
Max. Operating Temperature: 250? F
Positive Operating Pressure (in water column): 10 in WC
Negative Operating Pressure (in water column): 1/2 in WC
Velocity (feet per minute): 5500 FPM
Insulation: Non-insulated
Material: 3-ply Aluminum foil laminate
Application: Ideal for use in bathroom fan venting and other general purpose exhaust applications