Product Parameter: Our air vent cover is designed to be compatible with standard sizes, with a 8" diameter. The flange opening measures 7.28", while the panel size is 9.84". With a thickness of 2.48", it offers a sturdy and reliable construction Built-in Screen Mesh: The HG Power exhaust vent features a built-in screen mesh that allows fresh air to circulate while protecting your environment and enhancing your quality of life Premium Material: Constructed from high-quality ABS material, the gable vent is both durable and easy to maintain, ensuring long-lasting performance Easy to Use: The wall vent cover's white panel is designed for easy detachment, providing convenient airflow adjustment to suit your needs Portable & Lightweight: The HG Power shed vent offers versatile installation for wall or ceiling, providing effective ventilation in any space. The grille cover ideal for attic, bedrooms, and offices, it enhances indoor comfort and health Tip: Apply waterproof glue (like silicone sealant) between flange and white panel to prevent temperature-related detachment Suggest: For bulk orders, we advise purchasing a single unit first to verify suitability before committing to large quantities Specification: material: ABS size: 8 inch Ideal for vent pipes / hoses, bathroom vents & extractors, air conditioning units, kitchen fans & vents, all home wall vents, heat transfer and ventilation systems, gas & electric dryers, cooker hood extractors, as well as a wide variety of industrial uses.