[Perfect Dimensions & Compatibility]Designed with a 60mm (2.36") cutout hole, an outer flange diameter of 70mm (2.76") , and a hose connecting pipe size of 46mm (1.81") . This universal RV AC vent is specifically crafted for seamless installation in various applications, including motorhomes, campers, caravans, buses, boats, yachts, and marine vehicles. [360° Swivel & Directional Airflow]Features a unique 360-degree rotating design that allows you to easily direct the airflow exactly where you need it. Whether you need to cool down a hot sleeping area, defog a windshield, or provide ventilation for an enclosed space, this adjustable outlet offers superior control over air distribution. [Durable & High-Quality Material]Constructed from premium ABS plastic, these air conditioning vents are built to last. The material is lightweight (approx. 38g per vent), impact-resistant, and corrosion-proof, making them ideal for the demanding environments of RVs and marine vessels. The sleek matte finish (Gray/Black) adds a clean, professional look to your interior. [Quick & Hassle-Free Installation]The user-friendly design ensures a simple DIY installation. Just cut your required 60mm hole, insert the vent, secure the flange, and connect your 46mm HVAC hose. The 3-piece set provides a cost-effective solution for upgrading multiple vents in your cabin, living area, or bathroom. [What You Get & Applicable Scenarios]Each package includes 3 complete RV air vents (PE bag packaging). Perfect for a wide range of applications, including hot/cold air conditioning systems, exhaust ventilation, and heating ducts. If you have any questions about sizing or installation, please refer to the product images for detailed dimensions or contact us directly.