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The BSC PREFERRED DIB925W is a 1-1/2 inch x 16 inch white polypropylene end outlet continuous waste fitting designed to connect double bowl sink strainers to a single drain connection. Built for under-sink drain assemblies, this fitting ships with a baffle tee, nuts, and washers, giving the installer everything needed for a leak-resistant installation without additional hardware. The polypropylene construction resists corrosion and common drain-line chemicals, making it a dependable choice for both residential and light commercial applications. Weighing approximately 0.60 pounds, it is lightweight and easy to handle during installation.
This fitting is intended for use in kitchen or utility sink drain configurations where a double bowl sink must tie into one trap and drain outlet. The end outlet design routes flow from both bowls through a single connection point. It accommodates either a slip joint or direct connection, providing flexibility in how it integrates with existing trap and drain stub-out configurations. Licensed plumbers and skilled DIYers typically install this fitting as part of a complete drain assembly replacement or new installation under a double bowl sink.
Designed as an OEM-style replacement or new-installation fitting for standard 1-1/2 inch double bowl sink drain assemblies using slip joint or direct connection drain configurations.
Installation is typically performed by a licensed plumber or qualified DIYer in accordance with local plumbing codes and IPC guidelines. Shut off the water supply and clear the cabinet under the sink before beginning work. Hand-tighten slip joint nuts first, then snug with slip-joint pliers - avoid over-torquing polypropylene fittings. After installation, run water through both bowls 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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