Package content: 5 pieces. Aerator tap outer diameter: 23.5mm, height: 14mm, thread size: M24. Fits perfectly to a 24mm thread. : Our faucet jet regulator features a chrome-plated brass body and stainless steel filter, making it non-toxic, abrasion resistant, rust resistant, durable, and reliable. The mounting wrench is constructed from chrome-plated carbon steel for enhanced durability and reliability. Durable wrench: The fitting wrench is made of chrome-plated carbon steel, ensuring long-lasting performance. Its robust construction provides superior strength compared to plastic tools. Provides secure grip during installation without slipping or scratching. The included wrench simplifies installation, making it easy even for beginners. Features: Operates quietly and helps conserve water. Generates air bubbles to minimize splashing and reduce water impact. Effectively filters out impurities. Delivers a steady, uniform water flow. Wide usage: Suitable for kitchen sink faucets or washing machine connections, allowing control of water flow between faucet and hand shower.