Heavy Duty Flangemount BlowerHeavy Duty Blowers are designed for applications such as commerical or high use engine room ventilation and extraction where a long life requirement demands heavy duty motors with long brush life. Built to provide the same high outputs as our standard specification blowers.5,000 hr motor life for the heaviest of applicationsContinuous dutyEfficient high volume air flowOutlet flange mounts directly on bulkheadSlip on inlet ducting connectionLow current drawCorrosion resistant materials throughoutDimensionally stable quiet running Delrin rotorsComplies with USCG 183.410 and ISO 8846 MARINE (Ignition Protection)ISO 9097 MARINE (Electric Fans)WARNING: This product can expose you to chemicals including NICKEL (METALLIC) which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov.