Jabsco - Flangemount Blower - 4" - 12V - 35400-0000. Tough Reinforced Plastic Housing. Mounts to any flat surface. Slip-on Inlet Ducting Connection. Efficient High Volume Air Flow. Low-Current Draw. Corrosion-Resistant Materials Throughout. N.M.M.A Type Accepted. Meets USCG Regulations 183.410 and ISO 8846 MARINE for ignition protection. Complies with ISO 9097 MARINE VARIATIONS. 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.