Feature:1. The frame and blade are made of ABS material, painted white, waterproof, dustproof, energysaving, durable and reliable.2. Strong wind but quiet operation, low noise, extremely quiet ventilation, can quickly remove moisture and odor.3. Equipped with dust-proof and insect-proof filter, two-way ventilation, supporting large-displacement ventilation, and more efficient.4. Builtin thermal protection copper motor, it can work continuously without maintenance. It is suitable for ships, yachts, RVs, trailers, RVs, etc. It can also be used for kitchen, bathroom, and bedroom.5. Top-mounted, space-saving, easy to install, no complicated tools, no waste of your time.Specification:Item Type: Exhaust FanMaterial: ABSColor: WhiteRated Voltage: 12VOpening Diameter: Approx. 118mm/4.65inSpeed: 5000 rpm/minAir Volume: 200CFMInstallation Thickness: Approx. 80-160mm/3.15-6.29in (adjustable)Installation Method: Open hole, connect at both ends.Usage: Install and fix, and then it will start workingWiring Method: Fan positive connection switch intermediate standThe negative pole of the fan is connected to the negative pole of the power supplyThe positive pole of the power supply is connected to the tripod at both ends of the switch.Package List:1 x Exhaust Fan1 x Air Outlet5 x Fixing Screw1 x Manual