[Ceramic cartridge]the heart of a faucet. A cartridge combines hot and cold water inside the faucet and regulates the flow. A valve cartridge looks like a car engine, it should run smoothly and continuously. [How to choose a ceramic cartridge] You need to measure the outside diameter of the cylinder of the ceramic cartridge from the water valve. The diameter of the commonly used ceramic cartridge is usually 35mm. It is recommended to buy two pieces at a time. In this case, you can check the quality or check whether the ceramic cartridge fits the faucet. [Installation Guide]First, your ceramic cartridge must be compatible with the faucet . Then make sure the ceramic cartridge locating pin is in place (must be installed in the hole) and finally make sure you have tightened the copper cover of the ceramic cartridge. [Water Saving]If you have a leaky faucet, this replacement ceramic cartridge might be for you. Ceramic cartridge type can prevent water leakage and save water. [Durability] Made of high quality PP plastic and ceramic film, practical and durable. This is a 35mm quarter turn filter taps disc cartridge. 35mm mixing cartridge. This is a practical replacement ceramic disc cartridge, which is made of high quality PP plastic and ceramic film, practical and durable. Can prevent water leakage and save water. Specifications: Condition: ; Brand New Main Material: PP Plastic Type: 35mm 35mm Type Size: about 3.5cm diameter x 5.8cm / 1.3 \ &34; Diameter x 2.2 Main color: blue Ceramic cartridge You need to measure the outside diameter of the cylinder of the valve ceramic cartridge. 'water. The diameter of the commonly used ceramic cartridge is usually 35mm. It is recommended to buy two pieces at a time. In this case, you can check the quality or check whether the ceramic cartridge fits the faucet. 35mm mixing cartridge Specifications: Lifetime: 500,000 times Package includes: 1 ceramic disc cartridge