This multifunctional air admittance valve is designed to automatically vent and drain, ensuring optimal airflow and preventing unwanted odors. Its sleek design and durable construction make it a reliable addition to any ventilation system. Ideal for use in various settings, it seamlessly integrates with existing ductwork and enhances overall efficiency. Features -Color:White -Material:Plastic -Size:14.60X11.50X11.40cm/5.74X4.52X4.48in -Inner diameter: 110 mm -Multifunctional design: this product is designed for use with air admittance valves, drainage pipes, and exhaust hoses, offering versatile applications for various piping systems -Automatic ventilation: equipped with an automatic ventilation feature, it effectively prevents water accumulation and ensures smooth airflow in your piping system -Easy installation: the fittings are designed for easy installation, making them suitable for a wide range of pipes and ducts without the need for tools -Durable and reliable: made from plastic materials, this product is built to last, providing long term reliability and performance in various environmental conditions -Weather protection: the design includes features that protect your pipes from rain, ensuring that your piping system remains unaffected by external elements Package list: 3 x drainage rain cap