Water Saving: Faucet Aerator can fully mix water and air flowing through the aerator to create a foaming effect, improve rinsing power and reduce water consumption. The faucet installed with an aerator can save about 40% water. 7-Layer Filtration: Our faucet filter has 7 layers of fine filtration to ensure clean, hygienic and safe water. The 2-layer ABS perforated filter can effectively filter large particles of impurities in the water flow. 5 layers of SUS 304 stainless steel filter can effectively filter small particles in the water flow Constant water flow: Faucet aerators ensure a certain water output when the water pressure is too low, limit the water output when the water pressure is too high, and stabilize the water output when the water pressure is unstable Splash-proof and noise reduction: The perfect airflow design in the faucet aerator, the hollow part of the filter element is mixed with air and the water flow is soft, the impact is reduced, the buffered water column is uniform, and the water column is vertical to prevent water splashing Package contents: 4 faucet aerators, 4 gaskets Quality material: Our M24 male thread faucet aerator is made of thick chrome-plated brass, SUS 304 stainless steel + ABS filter and high-quality rubber gaskets. Non-toxic, rust-proof, wear-resistant and bright, strong and durable. Easy installation: No tools are required for assembly, so it is very easy. Simply use your hands and tighten the aerator directly or use the aerator wrench to tighten it securely. The included installation wrench allows for absolutely simple installation, even for novices. Replaceable gasket: In order to ensure effective use of the sealing ring, we have prepared 2 additional sealing gaskets. Package contents: 4 faucet aerators. 4 gaskets. Material specifications: Material (housing): chrome-plated brass. Material (filter): ABS + SUS304 stainless steel. Material (aerator wrench): chrome-plated carbon steel. Outer diameter: 24 mm. Height: 12 mm. Thread: M24. When water flows from the faucet, it first passes through the 2-layer ABS plastic filter screens and enters the inner hollow of the main brass element. The good air circulation in the filter element allows air and water to mix perfectly, then pass through the 5-layer SUS 304 stainless steel filter and creates enough bubbles to discharge the water. The water flow is uniform, soft and does not splash. By adding air, the jet power of the water flow is greatly improved, which effectively reduces water consumption and saves about 40% water.