Features: 1.6?blade fan maximizes airflow and efficiency. Ultra?low current consumption, high air flow, long service life. 2.Suitable for 4in diameter hoses, provides ventilation for the engine compartment, galley, bilge and cylinder head. 3.Built?in mounting feet for vertical or horizontal installation, which can meet different needs. 4.The sealed motor shaft is used to prevent moisture for better performance, which is reliable to use. 5.Anti-corrosion design and waterproof motor housing can fully adapt to the harsh marine environment.Specification:Item Type: Bilge Air BlowerMaterial: ABSModel: NMIB1-270-02Voltage: 12VAir Flow: 270cfm / 456 cmhCurrent Consumption: 6.0AFuse: 10AIntake Pipe Diameter: Approx. 4 inchesWiring:The red wire is connected to the positive pole (+)The black wire is connected to the negative pole (-)Precautions:1. The same fuse amplifier (see ventilation parameters) installed in the positive (+) line must be used to protect the bilge blower wire.2. A switch with the same fuse ampere rating should be installed in the positive circuit.3. The minimum lead size should be 16 AWG (gauge).Package List:1 x Bilge Water Pump1 x Manual