DC 250 CFM Flexmount Continuous Duty 4" BlowersFeatures:Extended Life 5,000 Hour MotorTough Reinforced Thermoset Plastic HousingMounts To Any Flat SurfaceSlip-On Inlet Ducting ConnectionEfficient High Volume Air FlowLow-Current DrawCorrosion-Resistant Materials ThroughoutN.M.M.A. Type AcceptedMeets USCG Electrical Regulations of Title 33Chapter I, Part 183Subpart I and IS0 8846 for Ignition ProtectionComplies with ISO 9097 MarineCE Conforms with EN 5008-1 for Supression of Electro-magnetic interferenceWARNING: 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.