Features: Cylinder Faucet Cartridge Valve is with 3 holes at the bottom, a useful part to control water flow, direction or pressure. Specification: Material: ceramic plastic Nominal diameter: 25mm/35mm/40 (mm) Applicable medium: water Scope: faucet Maximum rotation angle: 90 (degrees) Maximum operating temperature: 100 (degrees Celsius) Material: Plastic Exterior, Ceramic Interior Using Instructions: Use a screwdriver to pull out the hot and cold marking Use a smaller screwdriver to turn the small screw counterclockwise Grasp the leading handle,turn the cover counter-clockwise by hand Unscrew the hexagon cap with an adjustable wrench Remove the old spool When installing the spool, the 2 convex points of the valve core are to be aligned with the 2 concave points of the main body. Please carefully align the 2 concave points within the main body. Package Included: 1 x Faucet Ceramic Cartridge