Orion OD1225-12MB MEDIUM Speed (2050 RPM) 4.7" 12VDC Square Muffin Fan. Priced Per Each Orion OD1225-12MB MEDIUM Speed (2050 RPM) 4.7" 12VDC Square Muffin Fan. Priced Per Each 83 CFM, 12" Wire Leads Long life dual ball bearing Frame & Impeller: PBT, UL94V-O plastic