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The LEGEND VALVE 312-165nl is a lead-free bronze insert coupling designed for use in potable water and general plumbing systems. Insert couplings of this type connect two lengths of tubing by sliding each end into the fitting body, creating a secure mechanical joint. The lead-free bronze construction meets modern drinking water regulations and suits residential and light commercial installations. Plumbers and pipefitters install this fitting when joining or repairing copper or compatible tubing runs in supply lines and distribution systems.
This 1-inch insert coupling is suited for residential and light commercial plumbing applications where lead-free materials are required by code. Typical use cases include potable water supply lines, repair joints in existing copper tubing systems, and new construction distribution piping. Its bronze body offers reliable durability in wet service environments. Where local codes mandate lead-free fittings for potable water contact, this coupling satisfies those requirements.
Designed as an OEM-style replacement and standard insert coupling for 1-inch tubing in residential and light commercial plumbing systems. No specific compatible model numbers were provided in the product data.
Installation is typically performed by a licensed plumber in accordance with applicable local plumbing codes and IPC guidelines. Shut off the water supply and depressurize the line before cutting or joining tubing. Ensure tubing ends are cut cleanly and deburred before inserting into the coupling to achieve a proper seal. Follow the fitting manufacturer instructions and any local code requirements for pressure testing after installation.
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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