4 inches duct diameter wall mounted ventilation system

{"cid":"91222833","title":"SFW-25 Air Curtain Wall Mounted Ventilation System with 120V Power 520*380*150mm Compact Design and 4 Inches Duct Diameter","imgUrl":"https:\/\/img.chinax.com\/nimg\/70\/63\/4131180a08f26ae00126a4994e0a-200x200-1.jpg","attrs":{"Price":"negotiable","Model Number":"SFW-25","Minimum Order Quantity":"200","Delivery Time":"3weeks","Place of Origin":"China","Payment Terms":"L\/C,D\/A,D\/P,T\/T,Western Union,MoneyGram","Packaging Details":"Wooden box packaging","Installation":"Easy To Install","Color":"White","Power Source":"Electric","Voltage":"120V","Transmission Form":"Gear","Hs Code":"8419500090","Specification":"520*380*150mm","Transport Package":"Wood","Type":"Wall-mounted","Duct Diameter":"4 inches","Airflow Capacity":"Up to 500 CFM","Certifications":"CE, RoHS","Warranty":"1 year","Refrigerant":"R32","Air Flow":"100-500 CFM"}}

{"cid":"91223450","title":"SFW-25 Air Curtain Wall Mounted Ventilation System with 120V Power 520*380*150mm Compact Design and 4 Inches Duct Diameter","imgUrl":"https:\/\/img.chinax.com\/nimg\/70\/63\/4131180a08f26ae00126a4994e0a-200x200-1.jpg","attrs":[]}

{"cid":"91220443","title":"OEM Supported 6 Inch Ceiling Duct Bathroom Ventilation Fan with LED Light and Wall Mount","imgUrl":"https:\/\/img.chinax.com\/nimg\/1b\/bf\/459e7b14891d59ec39f47c25fa72-200x200-1.jpg","attrs":{"Price":"$4.99\/pieces 100-499 pieces","Brand Name":"ELMAK","Minimum Order Quantity":"100 pieces","Type":"Axial Flow Fan","Applicable Industries":"Hotels, Garment Shops, Building Material Shops, Manufacturing Plant, Food & Beverage Factory","Customized support":"OEM, ODM","Electric Current Type":"AC","Mounting":"Duct Fan","Blade Material":"Plastic","Place of Origin":"Zhejiang, China, Zhejiang","Voltage":"240V","Warranty":"3 years","After-sales Service Provided":"Online support","Mechanical Life":"3 Years","Product name":"Ventilation","Color":"white","Certification":"CE","Air Quantity":"162-252","Material":"Plastic","Design":"OEM\/ODM","Packaging Details":"Standard Export cartons","Port":"NINGBO","Supply Ability":"100000 Piece\/Pieces per Month"}}