The 4TRADE AF110 Push Fit Air Admittance Valve is a high-quality, reliable component designed to facilitate the proper ventilation of your drainage systems. This valve, presented in a clean white finish, employs push fit technology for quick and easy installation. It allows air into the system when necessary to maintain appropriate pressure and prevents unpleasant odours from escaping. The device is constructed from durable materials ensuring long-lasting performance. Built to the highest standard, this valve is compatible with most UK waste pipe sizes and meets all relevant British standards.