Feature: 1. Fitment: Valve cartridge is replacement for Delta DST single handle kitchen and lavatory faucets, please confirm whether your model is applicable before buying. 2. OE Number: The part number of valve cartridge for reference is RP50587, please confirm whether it is consistent with the OE you need. 3. Precise Size: With a diameter of 36mm, this valve provides precise dimensions for secure installation, minimizing the risk of leaks due to incorrect sizing. 4. Metal Material: Made of premium metal, this cartridge valve can withstand long term use while maintaining optimal performance, delivering stable water flow and increased durability. 5. Great Replacement: Ideal for replacing a faulty cartridge, this cartridge valve offers an affordable option to replace the valve without replacing the entire faucet, saving you time and money. Specification: Item Type: Single Handle Valve Cartridge OE: RP50587 Fitment: Replacement for Delta DST Single Handle Kitchen and Lavatory Faucet 36 mm. Package List: 1 x Single Handle Valve Cartridge 1 x Washer Note: 1. Please carefully check the OEM number and Fitment model before purchasing. 2. It is highly recommended to have the installation done by a professional mechanic.