Eau 4 inch duct is manufactured with a helically shaped internal crimped high tension hard steel spring wire.
The wire locks together with the aluminum foil both outside and inside to form an airtight and leak proof lock system.

It ensures excellent strength, making it perfect as a flexible solution for a broad range of venting requirements from low or high pressure heating,
as well as for ventilation to air conditioning application, including HVAC system, heat filters, medical rooms, air conditioner, allergy room, bathroom,
greenhouse, tent grow room, air tight system and stove vent, circulating the atmosphere, air-conditioning the flow,
removing heat from an enclosure, distributes CO2, increases temperature & humidity levels and etc.

4 Inch Duct Hose:
* Minimum echoes possible
* Ideal for HVAC, bath and general ventilating applications
* Completely flexible shape and elasticity for routine exhausting
* Can be easily fitted to circular, oval or rectangular connectors
* Self-supporting with high tension hard steel spring wire, leaking proof & corrosion resistant

Specfications:
Color: Black
Material: Aluminum + PVC + PET
Size: 4 In X 12 Feet

Package Included:
4 In x 12 Feet Duct Hose
2 x hose clamps