Oatey Sure Vent PVC Air Admittance Valve Kit a reliable and efficient to secondary venting, making it an i choice for compliance with model plumbing codes and Oatey installation instructions. This valve is for venting island sinks, remote bathroom groups, and remodeling projects by eliminating the need to connect to a stack vent, simplifying installation and saving time. Made from durable PVC with a 1-1/2" solvent weld size, this kit ensures long-lasting performance and easy integration into your plumbing system. Model Number: 39239