OdorStop Flexible Duct in Various Sizes and Lengths with Connecting Belt (4"x25' (Belt))

4" x 25' PVC Flexible Duct, Retracts Into Self-Contained Carry Bag Temperature Resistant to 180F, Positive or Negative Pressure Professional Grade PVC over Steel Spring Wire, Non-Collapsible Connect Multiple Ducts Without Connecting Collar, Meets ASTM 227 Demonstration video at: https://youtu.be/WVXcMQ-BuNM