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The ASC Engineered Solutions 8700133708 is a 1-1/4 inch FPT x 1-1/4 inch FPT full-size coupling manufactured from malleable galvanized iron. It joins two threaded pipe sections of equal diameter in a straight run, providing a secure, corrosion-resistant connection. The galvanized finish protects against rust in wet or humid environments, making it a reliable choice for water supply, gas distribution, and general industrial piping. Licensed plumbers and pipefitters install this fitting as part of threaded iron pipe assemblies in both new construction and retrofit work.
This coupling is suited for residential and light commercial piping systems where 1-1/4 inch threaded iron pipe is specified. Typical applications include water distribution lines, low-pressure gas piping, compressed air systems, and fire protection rough-in work. It is sold individually and is compatible with standard NPT threaded pipe and fittings of the same nominal size.
Designed as an OEM-style replacement or new-installation fitting for standard 1-1/4 inch NPT threaded iron pipe systems in plumbing, gas, and industrial piping applications.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local plumbing and mechanical codes, including the IPC and IFGC where relevant. Shut off and depressurize the pipe system fully before disassembling or installing any threaded fittings. Apply an approved pipe thread sealant or PTFE tape to the male threads before assembly. Do not overtighten, as malleable iron fittings can crack if excessive torque is applied.
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