4 inches duct diameter circular air grille

{"cid":"91223450","title":"SCG-1 Circular Air Grille with 4 inches Duct Diameter 110-240V Voltage and 3kg Weight for HVAC Systems","imgUrl":"https:\/\/img.chinax.com\/nimg\/8c\/52\/ea6ab0f72dda230bf2f7c0c65038-200x200-1.jpg","attrs":[]}

{"cid":"91171815","title":"Circular Inline Fan For Indoor Grow Tent Ventilation, Hydroponics & Plant Climate Control","imgUrl":"https:\/\/img.chinax.com\/nimg\/7d\/19\/01b705c5c00624560163dd3af81e-200x200-1.jpg","attrs":{"Price":"negotiation","Brand Name":"OFAN","Model Number":"RD150","Minimum Order Quantity":"1pcs","Delivery Time":"10 work days","Certification":"CE,ROSH","Place of Origin":"China","Supply Ability":"10000","Packaging Details":"carton","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, ","type":"RD150","Speed":"2450pm","Power":"92w","Current draw":"0.4A","Nominal voltage":"220V","Air Flow":"690m\u00b3\/h"}}