General description The RP50587 Cartridge Valve Replacement is designed for Delta DST kitchen sink faucets with a single handle. This replacement cartridge is compatible with Delta OEM Part #RP50587 and is suitable for both kitchen and bathroom faucets that utilize 36mm Delta Motion Cartridges. It effectively resolves issues related to faucet leaks and improves the ease of movement for older cartridges. Technical specifications Compatible Models: Fits Delta models 500-DST, 520-DST, 501-DST, 501LF-HDF, 520LF-HDF, and most Delta Single Handle Diamond Seal Faucets. Dimensions: 36mm cartridge size. Material: Constructed from premium metal and plastic for durability. Installation Installation is straightforward and can be done with basic tools. Ensure the water supply is turned off before beginning the replacement process. Usage The cartridge features a "Handle Limit Stop" that allows for the adjustment of hot water mixing, helping to prevent scalding by controlling the handle movement for