Package Included:1 x Ventilation Duct Specifications: Length: 1m Material: Aluminum Temperature range: -30℃ ~ 100℃ Pressure: 2500 pa Features: -High temperature resistant, corrosion resistant, lengthy lasting aluminum foil thickness, temperature ranges from -30 to 100℃. -Built-in metal twine for reinforcement and lasting performance. -Perfect for heating ventilation, air conditioning, kitchen, bathroom, greenhouse, grow room, develop tent, etc.