1-1/2"x16" Plastic Extension Tube, P-Trap, Slip Joint , sink drain

Dearborn A9793E – 1-1/2" x 16" Polypropylene Extension Tube with Slip Joint

The Dearborn A9793E is a 1-1/2 inch by 16 inch plastic extension tube designed for extending tubular drain lines in lavatory and kitchen sink installations. Constructed from durable polypropylene, this extension provides a corrosion-resistant, impact-resistant solution for connecting slip joint waste arms or tailpieces to trap assemblies.

This extension tube is equipped with a slip joint outlet for easy integration with standard 1-1/2" tubular drainage fittings. The cut-to-length design allows it to be trimmed in the field to accommodate custom vertical drop requirements without compromising fit or performance.

Key Features

• ✔ Durable Polypropylene – Resistant to corrosion, scaling, and most household chemicals
• ✔ Slip Joint Connection – Allows for quick installation and field adjustment
• ✔ Cuttable Design – Can be trimmed to meet specific vertical pipe offsets or layout conditions
• ✔ Universal Compatibility – Interfaces with standard 1-1/2" tubular drainage systems
• ✔ Available in Multiple Colors – Commonly offered in black or white to suit project preferences

Technical Specifications

• Tube Diameter: 1-1/2 inches nominal
• Tube Length: 16 inches
• Material: Polypropylene (PP)
• Connection Type: Slip joint
• Use: Drainage extension between fixture tailpiece and trap

Installation Notes

For best results, ensure the tube is cut squarely when field trimming. Use a slip joint nut and washer (sold separately) to form a leak-resistant connection. Hand tightening followed by a quarter-turn with an adjustable wrench is typically sufficient. Avoid overtightening, which may damage the plastic fitting or distort the washer.

Professional Use Case

The Dearborn A9793E is a standard component for drain line rough-in and retrofit work. Its reliable construction and jobsite flexibility make it suitable for commercial, multi-family, or residential projects where offset or extended trap arm alignment is needed.