The 4" to 2-1/4" OD - 2" ID Reducer by WALTER MEIER MFG INC WMH TOOL GROUP is a high-quality fitting designed for seamless transitions in piping systems. This reducer is crafted from durable materials, ensuring longevity and resistance to wear. With an outer diameter of 4" and inner diameter of 2", it is perfect for reducing pipe sizes in various applications, including HVAC and plumbing. The reducer complies with industry standards, making it a reliable choice for professionals seeking efficient solutions in fluid transfer.