Features: Universally campers roof vent cap with spirals airflows design enhances ventilation efficiency by 30% and features 304 stainless steel mesh to block leaves, and rainwater. Engineered with ABS/aluminum construction and UV resistant coating, this vent adapter combines threaded/collar base compatibility with 360 multidirectional airflows for seamless campers roof vent installation. Ideal for campers owners seeking DIYer friendly upgrades, this fan cover serves maintenance crews and outdoor enthusiasts requiring ventilation solution for mobile living spaces. Effectively removes trapped heat from driver cabins, reduces humidity in campers bathrooms/kitchens, and maintains airflows in bedrooms through its weatherproof mushroom shaped design. Withstands extreme temperatures ( 30°C to +70°C) and road vibrations through reinforced engineering, 10000+ durability tests for year round campers vent protections. Specifications: Component: PP Color:White,Black Size:Approx.134mm/5.27''x71.5mm/2.81'' Package Includes: 1Piece Ventilation Cap note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.