Brand Name: Deflect-O
*Adjustable: Yes
*Diameter: 4 in.
*Material: Polyester
*Product Type: Duct Adapter
*End 2 Inside Diameter: 4 in.
*Twist Lock: No
*End 2 Outside Diameter: 4 in.
*Shape: Helix
*Color: Black
*End 1 Outside Diameter: 4 in.
*Packaging Type: Boxed
*End 1 Inside Diameter: 4 in.
*UL Listed: Yes
*UL listed 181 Class One air duct
* R4.2 insulation No installation length limitations
* Ideal for HVAC, bath and general venting applications