🚽 Elevate Your Plumbing Game! Compatible with both 1-1/2 and 2-inch piping for easy installation. Meets ANSI/ASSE standards for peace of mind in your plumbing solutions. Constructed from high-quality ABS for long-lasting reliability. Prevents unpleasant odors with a gravity-activated seal. Perfect for single or multiple fixtures, maximizing space and performance. Vermin protection 160 DFUs capacity -40°F to 150°F The Studor 20340 Mini-Vent Air Admittance Valve is a compact and efficient solution for maintaining optimal drainage and ventilation in your plumbing system. With a capacity of 160 DFUs and a temperature range of -40°F to 150°F, this valve is designed for durability and performance. Its exclusive vermin protection system ensures that your plumbing remains free from unwanted pests, making it an essential addition for any modern bathroom or fixture setup.