This Studor Mini Vent Air Admittance Valve is a must-have for any home improvement project. Designed to fit both 1-1/2in and 2in PVC pipes, this valve allows for proper ventilation without the need for expensive and time-consuming roof penetrations. It's brand new and ready to be installed in your heating, cooling, or air system. With the added benefit of being a Studor product, you can trust that this valve is of high quality and will provide reliable performance for years to come. Get your hands on this essential piece of equipment today and take the first step towards improving your home's ventilation system.