ITEM NAME:3 Meter Length 100Mm/4 Inch Fresh Air System Flexible Aluminum Exhaust Duct J7C5 3 Meter Length 100Mm/4 Inch Fresh Air System Flexible Aluminum Exhaust Duct J7C5 Shape: Round Pressure: 2500 pa Air: 30 m/s High temperature resistant, corrosion resistant, long lasting. Built-in steel wire for reinforcement and lasting performance. Perfect for heating ventilation, air
