Material and durability Made of 304 stainless steel for strong corrosion and rust resistance. Built for longterm outdoor use without degrading from weather exposure. Weatherproof hemispherical shell The rounded, hemispherical hood keeps rain and wind out and helps block cold air from entering interior ducts. Ideal where external vents are exposed to the elements. Secure, adjustable mounting Three integrated fixing snap rings embed into the installation and allow adjustment of the sealing tightness. Once fixed with screws, the vent cover sits firmly and resists falling off. Easy installation Install the stainless steel vent cover on the wall with screws; the straightforward design requires no specialized tools. Note: wear gloves when installing to protect your hands and the stainless surface. Broad compatibility and function The round ventilation hood fits a wide range of circular pipes and wall openings, and works with bathroom exhaust vents, kitchen range hood ducts, air conditioner outlets, kitchen fans, and other wall vents. It serves as an external vent cover that protects duct openings while allowing airflow. Use scenarios Bathroom exhaust: Install on an external wall to prevent rain and drafts from entering the bathroom exhaust duct while keeping the fan outlet unobstructed. Kitchen range hood: Fit to the outlet of a range hood duct to protect the duct from grease and weather exposure and maintain a secure external cover. Air conditioner or wall fan outlet: Use as a protective hood for wallmounted HVAC or fan outlets to reduce cold air infiltration and shield the opening from winddriven debris. What this solves Prevents rust and extends service life compared with nonstainless components. Stops water and debris from entering ductwork while permitting required ventilation. Provides a stable, adjustable mount that minimizes the risk of the cover loosening or falling. Installation tips Position the hood over the pipe or wall opening, fix with screws through the cover, and adjust the snap rings for a snug fit. Wear gloves during handling and installation to avoid cuts and to protect the stainless finish.