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The ASC Engineered Solutions 8700158804 is a standard merchant galvanized coupling designed to join two straight sections of threaded pipe in low-pressure piping systems. Constructed from galvanized steel, this 1-1/4 inch female pipe thread (FPT) coupling provides corrosion resistance and reliable mechanical strength in a compact, single-unit form. It is a workhorse fitting used across plumbing, mechanical, and light industrial piping work. Plumbers and pipefitters install this type of coupling when a direct, in-line pipe-to-pipe connection is needed without offset or transition. At 0.515 pounds, it is lightweight and easy to handle on the job site.
This coupling is suited for low-pressure service lines carrying water, oil, compressed air, or gas. It is commonly found in residential and light commercial plumbing rough-in, HVAC hydronic systems, and general mechanical piping where galvanized steel fittings are specified. Both ends accept 1-1/4 inch female pipe threads, making it a direct inline connector for standard NPT-threaded pipe.
Designed as an OEM-style replacement and standard-service fitting compatible with 1-1/4 inch NPT-threaded steel pipe in low-pressure plumbing and mechanical piping systems.
Installation is performed by licensed plumbers or pipefitters in accordance with applicable IPC or IFGC code requirements for the service type. Shut off and depressurize the line fully before removing or installing any threaded fitting. Apply an appropriate pipe thread sealant or PTFE tape to the male threads before assembly. Do not overtighten, as this can crack or deform the fitting threads.
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