The 12FS-10MS Reducer & Expander from Fittings Unlimited Inc is a versatile fitting designed to adapt pipe sizes efficiently. This fitting features a 12FS connection on one end and a 10MS connection on the other, making it ideal for various plumbing and hydraulic applications. Constructed from durable materials, it ensures long-lasting performance and resistance to corrosion. Its design meets industry standards, ensuring compatibility with a wide range of systems. This reducer and expander is perfect for professionals seeking a reliable solution for transitioning between different pipe sizes in their projects.