Tap Aerator 8 Pieces Faucet Filter Water Saver Suitable for Faucet Aerator Stainless Steel Kitchen Faucet Nozzle Internal Thread Aerator Water Saver Valve Installation and Application: Easy installation, just tighten the aerator by hand. Suitable for kitchen and bathroom sink . Product Contents: 8 faucet aerators (8 built-in rubber seals). Durable Material: Made of high-quality brass shell and stainless steel filter, it is not easy to oxidize and has a long service life. Product Size: Faucet Aerator Outer Diameter: 22mm, Inner Diameter Measurement: 21mm, Height: 17mm. Efficient and Convenient: The high-density filter can effectively filter out most of the debris and scale, the water flow is smooth, and it provides enough bubbles to prevent splashing, with low noise and saves water bills.