Gasoline vapors can explore. Do not operate blower while refueling. To prevent personal injury, always disconnect one of the main battery leads when installing or servicing this product. Always use a fuse with amperage rating specified for the blower model. Failure to do so may result in serious personal injury or fire hazard We use an Anti-Aging, Ultraviolet- ABS Thermoplastic with robust reinforcement for maximum durability and reliability. The rugged design provides performance that you can rely on for years. 4inch In-line Blowers provide ventilation for bilges, engine compartments, galleys and heads. Designed for efficient, high output operation Compact and easily installed on any flat Built-in mounting feet allows easy vertical or horizontal installation. Very low current draw, high volume air flow, . Four-blade fan maximizes airflow and efficiency. Sealed motor shaft for moisture protection. ABS plastic housing. Voltage:12V Max amperage capacity: 2.5A Air Flow:270cfm Amp Draw(A):6.0A Fuse (A): 10A Intake PipeDiameter:4inch/102m color:White Material:plastic Package Contents: 1 x engine room fan Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.