Detmar Blower Tunnel 4In

High capacity CFM at low amp draw. 5-blade bullet-nosed impeller & cambered stator vanes provide high pressure with minimum air turbulence. Molded of tough corrosion-proof ABS plastic with rugged built-in mounting brackets. Molded tabs on all hose flanges provide positive hose connections. Meets or exceeds UL 1128 ABYCH-2 NMMA Certified USCG 33 CFR Sections 183.410 183.425 & 183.610 and IMCI Certified in accordance with ISO 9097. Salt spry corrosion-resistant. Humidity exposure-resistant. Vibration & shock-resistant. Low/high temperature performance. Ignition protection. Locked-rotor & blocked-inlet performance. 3'' IN-LINE BLOWERS: 3'' intake 3'' exhaust with remote mounting bracket. 8''L. 4-3/4'' mounted height. 170 CFM. 4'' IN-LINE BLOWERS: 4'' intake 4'' exhaust with remote mounting bracket. 5-3/4''L. 4-3/4'' mounted height. 240 CFM.