flexible insulated duct, insulated flex duct, HVAC duct hose, foil faced duct, glass wool insulation, round vent duct, supply and return duct, air conditioning duct hose, ventilation flexible pipe

Reinforced aluminum foil jacket shields the glass wool insulation from moisture, dust and minor abrasion.

Helical steel wire keeps the duct round and rigid under air pressure, avoiding sag or collapse.

Smooth foil inner liner lowers friction loss and supports steady, even airflow along long duct runs.

Glass wool layer limits heat gain or loss and helps prevent surface condensation and dripping.

Lightweight, bendable body fits tight ceiling, attic and wall-cavity routing without extra elbows.

Compatible with standard duct collars, hose clamps and aluminum foil sealing tape.