Package list 1 Pcs Universal Standard Straight Shower Arm Connection(with 3 x Sealing Ring) and 1 x Pipe Sealing Tape Specification Material: Zinc Alloy Color: Black Inner Diameter of 3-Way Shower Diverter: 0.79 inches / 20 mm Package: 1 Pcs shower diverter valve(with 3 x Sealing Ring) and 1 x Pipe Sealing Tape; Size: The inner diameter of shower arm diverter is 0.79 inches / 20 mm. For other sizes,please refer to the image Reliable Quality: The shower arm all metal universal 3-way diverter valve is made of zinc alloy,resistant to cracking,and has minimal impact on existing water pressure. Its wide water flow channel design ensures unrestricted flow Three-Way Switching: As a three-way valve,shower arm diverter valve effortlessly switches between overhead shower and handheld showerhead water flow. It can also dispense water from both outlets simultaneously,though the flow rate is halved at each outlet Advantages: The shower head diverter requires no professional plumber assistance and can be easily installed in minutes. It is compatible with most showerheads and shower accessories. Its minimalist style complements various kitchen and bathroom designs. It works with most shower arms and bathroom fixtures,allowing connection to handheld showers,shower filters,and handheld hoses Leak-proof Design: The shower head diverter valve features a rubber seal for superior sealing. When properly installed,it fits tightly with fittings to prevent leaks.