Housing is molded of tough, corrosion-proof ABS plastic. Rugged built-in mounting brackets for easy installation. Molded tabs on all hose flanges provide positive hose connections. Blower meets or exceeds the following standards: ABYCH H-2, NMMA Certified, USCG 33 CFR Sections 183.410 and 183.425, ISO 9097. 3 Intake. 3 exhaust with remote bracket. 8 length. 4-3/4 mounted height. CFM 170 air movement. Ignition protected & spark proof. 12V DC, 4.0A. Use 6A fuse.