The Polypipe 110mm Air Admittance Valve is a high-performance solution for ventilation in residential soil and vent plumbing systems. Designed to facilitate efficient air flow management, this valve prevents the release of foul air while protecting the drainage system from vacuum pressure. Its versatile design allows for both internal and external installation, making it an ideal choice for diverse plumbing configurations. Featuring a secure solvent weld socket connection, the valve ensures a robust and permanent integration into 110mm pipe networks. Engineered for reliability, this component integrates seamlessly with the wider Polypipe Soil Systems range and universal soil fittings. The clean white finish ensures a professional look in residential settings, while the durable construction provides long-term operational success. Product Summary: Polypipe 110mm Air Admittance Valve for soil and vent systems, featuring a solvent weld socket for secure installation in both internal and external residential plumbing applications.