Core Inner Outer Wire Variable Diameter Head Reducer provides a direct NPT reduction from 11/2 in NPT female to 1/2 in NPT male, featuring an inner outer wire construction and a variable diameter head to accommodate different installation situations. Key benefits Enables size reduction from 11/2 inch female to 1/2 inch male NPT, allowing compatibility between larger ports and smaller fittings in a single connector. Variable diameter head offers adaptable fit in tight or uneven spaces, improving installation flexibility. Core design intention supports reliable connections in piping and tubing projects where space and alignment are critical. Simplifies retrofits and repairs by replacing multiple parts with a single reducer that preserves thread standardization. Key attributes Functionality: NPT female to NPT male reducer with a variable diameter head for versatile applications. Compatibility: Compatible with standard 11/2 in female NPT ports and 1/2 in male NPT components. Size: 11/2 in female to 1/2 in male NPT connection. Material: material specification not provided in the listing; intended for use with standard NPT threaded components. Performance: designed to provide a straightforward reduction in line size while maintaining thread engagement and sealing integrity within typical operating conditions. Use cases Plumbing retrofit or : connect a 11/2 in female port to a 1/2 in male fitting to restore flow path or connect instrumentation without replacing larger sections. Hydraulic or fluid transfer lines: step down from a larger port to a smaller line in a compact space, enabling attachment of smaller hoses or sensors. Equipment compatibility adjustments: adapt a larger port on equipment or valves to a smaller threaded component such as gauges or adapters that use 1/2 in NPT male threads. Notes Material information is not specified in the product title; please refer to the product listing or supplier for material details and any applicable standards. Designed for standard NPT threaded connections; ensure thread compatibility and proper sealing methods for your application. For results, confirm the compatibility of the variable diameter head with the installation environment and available clearance before .