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The MERIT BRASS XB112-1608 is a brass pipe reducing coupling designed to connect two different pipe sizes in a threaded piping system. It features female British Standard Pipe Taper (FBSPT) connections on both ends, accepting a 1-inch pipe on one side and a 1/2-inch pipe on the other. Rated Class 125, this coupling is suited for moderate-pressure plumbing and fluid distribution applications. Plumbers and pipefitters install this type of fitting when reducing pipe diameter within a run, allowing two line sizes to join without additional adapters. The all-brass construction provides corrosion resistance and durability in wet service environments.
This reducing coupling is used in residential and light commercial plumbing systems where a pipe run transitions from a 1-inch main line down to a 1/2-inch branch or supply line. Typical applications include water distribution, low-pressure gas lines, and general fluid handling where threaded brass fittings are specified. The FBSPT x FBSPT thread configuration is standard in plumbing trade work and is compatible with pipe threads cut to BSP taper specifications.
Designed as an OEM-style replacement or new-installation fitting for threaded brass piping systems requiring a 1-inch to 1/2-inch reducing connection with FBSPT thread ends.
Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply and relieve system pressure before removing any existing fitting or threading new pipe. Apply an approved thread sealant tape or compound to the male pipe threads before making up the joint. Do not over-tighten threaded brass fittings, as excess torque can crack the fitting body.
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