SEAFLO 4" Electric In-Line Marine Bilge Air Blower 12V 270 CFM 456 CMH Quiet Boat White Marine Boat Electric Bilge Air Blower, 12v/6.0Amp, 270CFM/456CMH, 4" Outlet Hose Built-in mounting feet allow easy vertical or horizontal installation Very low current draw, high volume air flow, long life Six/Four-blade fan maximizes airflow and efficiency Sealed motor shaft for moisture protection