Description Description Do you need a durable air admittance valve If so, take a look at this product. Using reliable materials, durable. The unique design and exquisite craftsmanship ensure its popularity and practicality. This is your best choice! With this product, and you can have a more professional and enjoyable looking experience. Features -Color:White -Material:PVC -Size:8.80X8.80X5.00cm/3.46X3.46X1.97in -Pvc suction valve drainage air pipe automatic ventilation rain cap multi-functional pipe fitting. -Ensures efficient drainage by automatically ventilating and allowing air to pass through the rain cap. -Safeguards the water seal of the during negative pressure, preventing any leakage or damage. -Effectively prevents from escaping into the surroundings during positive pressure situations. -Simple and hassle-free installation by inserting the outer pipe and securing it for optimal results and a secure connection.Package list: 1 x air admittance valve