Semi-Rigid Air Duct/ventilation hose/range hood ho

Semi-Rigid Air Duct/ventilation hose/range hood hose 1.It is flexible, extendable and highly reliable for low and medium pressure air conditioning, ventilation, boiler systems and chimney liners. 2.Very light with negligible extra load, easy to install, aesthetic and modern. 3. elastic, flexibile and stretchable. 4.Oval and circular connectors are easily installed. 5.non-flammable. PROPERTIESVALUEDiameter Range76-315mm(3"-12")Thickness of Alu ribbon0.11mm; 0.08mm; Available on requestCorrugations9;4extension rate1:3.5; 1:3.75Standard Length1M; 2M; 3M;