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The NIBCO B055750PW is a 1-inch CTS push-fit 90-degree elbow designed for fast, tool-free connections in copper tube size plumbing systems. This lead-free fitting accepts push-in connections on both ends, eliminating the need for soldering, crimping, or clamps during installation. It is suited for potable water supply lines in residential and light commercial plumbing applications. The lead-free construction meets regulatory requirements for drinking water systems, making it appropriate for use on supply lines where water quality compliance is required. Plumbers and pipefitters reach for push-fit fittings like this one when working in tight spaces or when a torch is not practical.
This elbow is used to make a 90-degree directional change in 1-inch CTS copper, CPVC, or PEX tubing runs. Typical installations include under-sink supply connections, branch line routing around obstructions, and retrofit work where existing tubing must be redirected without cutting back large sections. The push-fit design makes it especially practical for service calls and repair scenarios where speed matters.
Designed as an OEM-style push-fit replacement fitting for 1-inch CTS plumbing connections in residential and light commercial potable water supply systems.
Installation is performed by licensed plumbers following applicable local plumbing codes and IPC guidelines. Shut off the water supply and depressurize the line before connecting or disconnecting push-fit fittings. Ensure tubing is cut cleanly and squarely and deburred before insertion to achieve a proper seal. Push-fit fittings require a removal tool to disconnect and should not be pulled apart by force.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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