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The BSC PREFERRED DIB941W is a 1-1/4 inch white polypropylene P-trap designed for bathroom tubular drain installations. The curved trap body retains a water seal that blocks sewer gases from entering occupied spaces while allowing wastewater to pass freely. Constructed from durable white polypropylene, the fitting resists corrosion and blends with standard white fixture finishes. All necessary nuts and washers are included in the package, and the assembly is designed for hand-tighten installation without special tools. Licensed plumbers and experienced DIYers install this trap as part of lavatory and bathroom sink drain assemblies.
This P-trap is suited for residential bathroom sink and lavatory drain applications where a 1-1/4 inch tubular drain connection is required. The white polypropylene construction is compatible with standard white fixtures commonly found in residential bathrooms. Its simple slip-joint design makes it a practical choice for replacement or new installation in tight under-sink spaces where access is limited.
Designed as an OEM-style replacement or new-installation P-trap for residential bathroom sink and lavatory tubular drain systems using 1-1/4 inch connections.
Installation is performed by a licensed plumber or qualified tradesperson following applicable IPC and local plumbing code requirements. Shut off the water supply and clear the drain line before beginning work. Hand-tighten all slip-joint nuts firmly to seat the washers and create a leak-free connection — do not overtighten, as this can crack the polypropylene fittings. After installation, run water and inspect all joints for leaks before closing the cabinet.
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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