COMPATIBLE REPLACEMENT The RP50587 cartridge is engineered for precise compatibility with Delta DST single handle kitchen and lavatory sink faucets. This ensures a fit and reliable performance, restoring your faucet to its original function without the need for modifications. COMPLETE KIT Includes the RP50587 replacement cartridge valve and RP51503 bonnet nut, providing all the essential components needed for a thorough faucet . No extra parts required — designed to deliver a straightforward and complete solution for common faucet problems. EASY INSTALLATION This direct replacement part installs quickly and efficiently, making it simple to bring back smooth water flow and accurate temperature control to your Delta faucet. Clear compatibility eliminates guesswork, whether you are a homeowner performing maintenance or a professional plumber servicing a client. FIXES COMMON ISSUES Effectively resolves leaks, drips, and inconsistent temperature control commonly found in worn or damaged Delta single handle faucet cartridges. Restores operation, helping you save water, prevent damage to surrounding areas, and maintain a clean, functional sink environment. KEY FEATURES Compatible with Delta DST single handle kitchen and lavatory faucets Includes replacement cartridge valve RP50587 and bonnet nut RP51503 Restores smooth water flow and precise temperature control Designed for fast, accurate installation Durable construction for longlasting performance PRACTICAL USE SCENARIOS 1. Ideal for replacing a worn cartridge in a busy kitchen where precise temperature regulation is essential for daily cooking and cleaning tasks. 2. for repairing a bathroom sink faucet with persistent dripping, reducing water waste and eliminating annoying noise. 3. Suitable for property maintenance or remodeling projects where ensuring all Delta DST faucets perform like is a priority. Built for dependable functionality and compatibility, this kit is the trusted solution for restoring the performance of your Delta single handle faucets and maintaining water efficiency in both residential and commercial settings.