🚀 Elevate Your Venting Game! Space-saving dimensions fit seamlessly into any setup. Perfect for single fixtures and branch applications. Adheres to ASSE, NSF, and IAPMO standards for peace of mind. Crafted from high-quality ABS plastic for longevity. Weighs only 8.8 ounces for easy installation. Meets multiple standards 5.5" x 5.5" x 8" dimensions 3-4 inch compatibility The Studor 20302 Maxi-Vent is a high-performance air admittance valve designed for efficient venting in various plumbing applications. Constructed from durable ABS plastic, it meets rigorous industry standards and is perfect for both residential and commercial use. With its compact size and lightweight design, this valve ensures optimal airflow while maintaining a sleek profile.