The 12MP-4FP Reducer STR by Fittings Unlimited Inc is a specialized fitting designed to transition between 12mm and 4mm pipes. This reducer fitting is crafted from high-quality materials, ensuring durability and resistance to wear. It is ideal for various plumbing applications, providing a secure and leak-proof connection. The fitting adheres to ISO and ANSI standards, ensuring compliance and reliability. Its compact design allows for easy installation in tight spaces, making it a reliable choice for both professionals and DIY projects.