Product Name: Impeller Model NO.: 834*142 Certification: RoHS, UR, ISO, UL, CE, CCC Pressure: Low Pressure Flow Direction: Cross Flow Usage: for Experiment, for Air Conditioner, for Manufacture, for Refrigerate Material: Plastic Trademark: kangbao Transport Package: Carton Box with Pallet Specification: 834*142 Origin: Changzhou, Jiangsu, China HS Code: 84159010 Product Description 1.Speicification:2.Packing details:3.Certifications:4.We can design the impeller according to your request,so if you have any more needs,just feel free to let me know.