Housing is molded tough corrosion-proof ABS plastic. Rugged built-in mounting brackets for easy installation. Molded tabs on all hose flanges provide positive hose connections. Ignition protected. Spark proof. Blower meets or exceeds the following standards: ABYCH H-2, NMMA Certified, USCG 33 CFR Sections 183.410 and 183.425ISO 9097, UL Listed, UL 1128 Standard Marine blowers.