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The NIBCO INC T00040D is a 3/4-inch CPVC coupling designed for joining sections of CPVC pipe in residential and light commercial plumbing systems. CPVC construction provides excellent resistance to corrosion, scaling, and the higher temperatures common in hot water distribution lines. This coupling is sold in packages of 25 units, making it a practical choice for contractors stocking up for new construction or retrofit work. Plumbers and pipefitters install this fitting as a standard straight-run connector wherever two lengths of 3/4-inch CPVC pipe need to be joined without a directional change.
This coupling is suited for use in potable water supply systems, hot and cold distribution lines, and other plumbing applications where CPVC pipe is the specified material. It is commonly installed in residential construction, multifamily housing, and light commercial projects. The 3/4-inch size is one of the most frequently used diameters in branch and main supply runs throughout a building.
Designed as an OEM-style replacement and standard-use fitting for 3/4-inch CPVC pipe systems in residential and light commercial plumbing applications.
Installation is performed by a licensed plumber following IPC or applicable local plumbing codes. Shut off the water supply and depressurize the line before cutting into any existing system. CPVC fittings require compatible CPVC solvent cement and primer applied per the cement manufacturer's instructions. Do not use PVC solvent cement on CPVC fittings, as the formulations are not interchangeable.
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