WMLBK Low Noise Inline Duct Booster - 4/7/8 Inch Exhaust Fan Extractor Ventilator for Home Kitchen Bathroom Warehouse Restaurant Garage Ventilation (4 inch black)

• 【Material】Fabricated out of premium iron and construction strengthened by screws ensure its working longevity.
• 【Feature】This inline duct fan is engineered to boost air in forced air heating and cooling systems without upsetting the balance in the closed loop system.
• 【Minimize Noise】The balanced blades design for minimize noise and vibration. the Motor with permanently lubricated bearing operates quietly.
• 【Easy to install】Fluted on both ends to receive ducting. portable and lightweight and can be installed anywhere.
• 【Compalibility】 this fan suit for various environment such as work shops, indoor growing rooms, warehouses and so on. it ideals for boosting supplyair, return air and venting.

Specification: Condition: 100%Brand New Color: Black / Silver(Optional) Material: Casing is made of galvanized steel Diameter: 4 inch: 100mm; 7 inch: 180mm; 8inch: 200mm; Input power: 4 inch: 25W; 7 inch: 50W; 8inch: 60W; Rated voltage: 220V Air suction volume: 4 inch: 140m³/h ; 7 inch: 500m³/h; 8inch: 1000m³/h; Rated frequency: 50HZ Operating noise: 30-34db Rated speed: 2800r/m Package Includes: 1 piece blower Note: Please allow 1-3mm error due to hand test. The color may have different as the different display.