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The MCGUIRE MFG lf3165cclk is a lead-free flexible lavatory supply kit designed for residential and light commercial plumbing installations. This straight supply line connects the shutoff valve to the lavatory faucet supply inlet using a 1/2-inch nominal compression inlet and a 3/8-inch OD outlet fitting. The chrome finish provides a clean, professional look in exposed under-sink applications. The loose key design allows for tool-assisted shutoff directly at the supply line. Licensed plumbers and journeymen typically specify this type of fitting where lead-free compliance is required under state and local codes.
This supply kit is suited for lavatory faucet connections in bathrooms, powder rooms, and restroom buildouts where a straight-run supply line fits the rough-in geometry. The compression inlet seats against standard 1/2-inch nominal valve outlets, and the 3/8-inch OD end connects to most standard lavatory faucet inlets. The lead-free construction meets Safe Drinking Water Act requirements for potable water contact applications in residential and commercial fixtures.
Designed as an OEM-style replacement or new-installation supply line for residential and light commercial lavatory faucet connections requiring a 1/2-inch nominal compression inlet and a 3/8-inch OD outlet.
Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC guidelines. Shut off the water supply at the main or branch shutoff before disconnecting or connecting any supply line. Do not overtighten compression fittings — hand-snug plus a controlled quarter-turn is the standard approach for flexible supply connections. Inspect the compression seat and ferrule for damage before reusing any existing fittings.
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