Bsc Preferred DIB964 Reducing Slip Joint Washers 2 Pack

Product Description

The BSC PREFERRED DIB964 is a reducing slip joint washer set sold two per card, designed to adapt a 1-1/4 inch O.D. tube for use with a 1-1/2 inch O.D. slip joint connection. This type of washer creates a watertight seal at the slip joint nut, compensating for the size difference between the two tube diameters. The DIB964 is a standard consumable part used in drain line assemblies under sinks and in similar P-trap configurations. Plumbers and drain service technicians keep these on hand for jobs where a smaller drain stub or tailpiece must connect into a larger slip joint fitting without leaking.

This reducing washer set is suited for residential and light commercial plumbing drain applications. The primary use case is under-sink drain assembly work, where a 1-1/4 inch tailpiece or trap arm must seat and seal inside a 1-1/2 inch slip joint nut. The two-pack card format makes it practical for service calls where a backup washer is useful to have on hand.

Key Features

• Adapts 1-1/4 inch O.D. tube to 1-1/2 inch O.D. slip joint connection
• Two washers included per card
• Designed for slip joint drain assemblies under standard sink configurations
• Lightweight at approximately 0.02 pounds per card

Compatibility

Designed as an OEM-style replacement washer for residential and light commercial slip joint drain assemblies requiring a 1-1/4 inch to 1-1/2 inch O.D. reduction.

Installation Notes

Licensed plumbers typically install slip joint components as part of drain trap and tailpiece assembly work. Shut off the water supply and clear standing water from the drain line before disassembling the slip joint. Slip joint connections are hand-tightened with a slip joint nut and do not require pipe thread sealant. Inspect the washer seating surface for debris or damage before tightening to ensure a proper seal.