... resistant 4.can be for hot air Good Flexible Aluminum Foil Duct For Ventilation System 1.Material:aluminum foil2.Features:aluminum foil with steel wire inside ... max operation pressure:2500pa.3.Application:used in hgih pressure,low pressure air conditioner and ventilation system,easy installation,graceful ... UK,French,Egypt,Italy,Pakistan,Canada,Janpan,Australia... Spec.O.D.(mm)I.D.(mm)Length(M/PC)2" ...