Features: Brushless for DC blower fan, widely used for smokehouse, smoke-generator, campnig, charcoal- starter, fire-starters replacement repair. 22cm 2-wire terminated for power supply, meet connection needs (red wire : positve,black: negative). High air volumn 3500rpm, reliable and safety to use. Dual-ball bearing with a long service for time. Eay to install, blower size 97x97x33mm, air duct diameter 33mm, operating-voltage 24V. Specifications: Main Material: Plastic Size: Approx. 9.7x9.7x3.3cm/3.82x3.82x1.30 inch Cable Length: Approx. 22cm/8.66 inch Diameter of Air Tube: Approx. 3.3cm/1.30 inch Bearing: double-ball bearing Speed: 3500rpm Note: Please allow 0-1cm error due to manual measurement. make sure you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Piece for DC Brushless Fan