Dearborn® Plastic Extension Tube with Slip Joint is designed with one or double-end connection for use with tubular drain applications. They are available with 1-1/4-In and 1-1/2-in connections with varying lengths. All slip joint connections feature Dearborn's signature TPE Blue washers for superior sealing. Dearborn is known for providing superior quality plumbing products designed with the plumber in mind.