1-1/4" x 12", Dual Thread Extension Tube, 17ga

Dearborn 822A-1 Extension Tube, 1-1/4" OD x 12", Chrome-Plated Brass

The Dearborn 822A-1 extension tube is a 12-inch tubular component used to extend 1-1/4" OD waste connections in lavatory drain systems. Fabricated from chrome-plated brass, it is suitable for use in exposed installations requiring durability, corrosion resistance, and dimensional precision.

This extension tube is commonly installed between the tailpiece and waste tee in sink applications, and is compatible with standard slip joint nuts and washers for a secure, leak-resistant connection. It is not intended for pressurized systems.

Product Features

• Outer Diameter: 1-1/4"
• Length: 12"
• Wall Thickness: Standard tubular gauge
• Material: Brass with chrome-plated finish
• Ends: One flanged end for slip joint connections; plain on opposite end

Application and Compatibility

• Designed for use in 1-1/4" tubular drain assemblies
• Compatible with common slip nuts and washers (not included)
• Used in lavatory and utility sink drain configurations requiring vertical extension

Technical Specifications

• Maximum Working Pressure: 15 PSI (non-pressurized DWV use only)
• Operating Temperature Range: Suitable for typical residential drainage conditions
• Finish: Polished chrome for exposed plumbing

Installation Notes

Install using standard slip joint practices. Ensure the compression washer is properly aligned and hand-tightened, then secured with a slip nut. Avoid excessive force to prevent deformation of the brass tubing. This component is intended for gravity drainage and should be installed per applicable plumbing codes.