Derale 16104 Features:

This 4 in. diameter fan uses a sealed IP68 certified waterproof & dustproof motor with 5 large, paddle style blades and due to its size a very versatile little puller fan. Though not reversible, it is popular in multi-industrial applications, from atv's to computers to audio equipment. Includes mounting kit and illustrated installation instructions.Reliable, long lasting high torque motor lasts up to 3x longer than regular electric fan motors; 5 wide paddle blades pull large volumes of air for maximum heat extraction.; Designed for maximum performance at high static pressure loads for more effective cooling.; Long lasting sealed waterproof, dustproof IP-68 certified motor; 125 CFM; Includes mounting kit and illustrated installation instructions; Puller (engine side) applications only.