Features: 1.Using high quality plastic material, can resistance chemical corrosion and heat. 2.With mesh inside, which is useful for keeping unknown objects out. 3.Universal to all roof vent, and also with easy installation and operation, time saving. 4.Widely use for RV camper, motorhome, trailer, boat, marine,, yacht, etc. 5.Own the advantage of low noise, giving you a quiet space and not being disturbed by others. Specification: Condition: 100% New_x000D_ Item Type: Side Air Vent Ventilation Exhaust Fan_x000D_ Color: Black_x000D_ Material: ABS_x000D_ Rated Voltage: 12V_x000D_ Power: 25W_x000D_ Cutting Hole Size: Approx. 123x163mm/4.84x6.42in Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.