Oatey 7991 Flanged Strainer Tailpiece 1.5 X 4 Inches

Product Description

The OATEY 7991 is a flanged strainer tailpiece designed for drain assembly applications in residential and light commercial plumbing. The tailpiece connects a sink strainer basket to the drain trap, providing the vertical drop section of the drain line. At 1.5 inches in diameter and 4 inches in length, this piece fits standard kitchen and utility sink drain configurations. It is a budget-tier component intended for straightforward replacement or new installation work by licensed plumbers and experienced DIYers.

This tailpiece is suited for residential kitchen sinks, utility sinks, and similar basin drain assemblies where a 1.5-inch flanged connection is required. The flanged design seats against the strainer basket for a secure, leak-resistant interface. It is commonly used in drain repair, sink replacement, and rough-in plumbing projects.

Key Features

• Flanged end for secure connection to sink strainer basket
• 1.5-inch diameter fits standard residential drain openings
• 4-inch length provides proper drop for trap alignment
• Budget-tier pricing suitable for high-volume service calls and repair work

Compatibility

Designed as an OEM-style replacement flanged tailpiece for standard 1.5-inch residential and light commercial sink drain assemblies. Referenced as a replacement for Dearborn 799-1.

Installation Notes

Installation is performed by a licensed plumber or qualified tradesperson. Shut off water supply and clear the trap before beginning drain disassembly. Hand-tighten slip-joint nuts first, then snug with slip-joint pliers — avoid over-tightening, which can crack fittings. Work must comply with applicable local plumbing codes and IPC guidelines.

Technical Specifications

• Diameter: 1.5 inches
• Length: 4 inches
• Connection Type: Flanged
• UPC: 041193006059

Standard Information

• Brand: OATEY
• Manufacturer Part Number: 7991