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The RLS 3761222200111 is a 1-3/8 inch P-trap designed for drain line applications in residential and light commercial plumbing systems. P-traps create a water seal in the drain line that blocks sewer gases from entering the occupied space. This fitting is installed by licensed plumbers and experienced pipe fitters working on sink, lavatory, and fixture drain connections. At 16.5 inches in assembled length, this unit fits standard under-sink rough-in configurations.
This P-trap is suited for use on lavatories, utility sinks, and similar fixtures requiring a 1-3/8 inch drain outlet connection. It is appropriate for residential bathrooms, kitchens, and light commercial restroom installations where code-compliant trap assemblies are required. Installers should verify local plumbing code requirements before specifying trap size and material.
Designed as an OEM-style replacement or new-installation P-trap for fixtures with a 1-3/8 inch drain outlet connection in residential and light commercial plumbing systems.
Installation should be performed by a licensed plumber in accordance with the applicable edition of the International Plumbing Code or local equivalent. Shut off the water supply and clear the drain line before beginning work. Hand-tighten slip-joint nuts to seat washers evenly before applying final torque with channel-lock pliers — do not overtighten, as this can crack fittings. After installation, run water and inspect all joints for leaks before closing access panels.
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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