The Kingston Brass KBRP3638EXC Extra Cap is a replacement component designed to ensure the continued functionality of your KB3638AL Tub & Shower Faucet. Crafted from durable brass material, this cap provides a reliable and long-lasting solution for maintaining your faucet's performance. Its cylindrical shape with internal threading allows for a secure and easy installation, fitting seamlessly into the existing faucet structure. This extra cap is particularly useful for those seeking to restore or maintain the original aesthetic and operational integrity of their shower system. It offers a practical solution for addressing wear and tear, preventing leaks, and ensuring smooth water flow. The cap's compact size makes it unobtrusive while still providing essential coverage and protection. It's an ideal replacement part for DIY enthusiasts or plumbing professionals alike, offering a straightforward fix for common faucet issues. The cap's solid construction contributes to the overall durability of the faucet, extending its lifespan. Ultimately, this replacement cap delivers a simple yet effective way to keep your bathroom fixtures in optimal condition..