Usage Tips:1、PREMIUM MATERIAL: It is made from premium PVC, ensuring it is erosion resistant and suitable for long term use. Its robust material guarantees a dependable performance. 2、VERSATILE APPLICATIONS: Ideal for a range of settings, this nozzle is ideal for use in pools, bathtubs, hot tubs, and spas. Its versatility meets your different replacing needs. 3、SMOOTH SURFACE: The smooth finish without burr enhances the visual appeal while providing practical functionality, and it can be used for a long time. 4、PROFESSIONAL CRAFTSMANSHIP: Finely manufactured, this accessory is crafted for security and reliability. Its expert construction makes it a good addition to your swimming pool setup. 5、EASY INSTALLATION: The installation process is easy, allowing you to easily replace old or faulty components. With minimal effort, you can enjoy a good using experience. Item Type: Bathtub Air Bubble Nozzle Jet Material: PVC Weight: Approx. 35g / 1.2oz Surface Diameter: 24.6mm / 0.97in, Inlet Diameter: 7.8mm / 0.31in 4 x Bathtub Air Bubble Nozzle Jet