LASCO 03-4341 White Plastic Tubular, 1-1/4-Inch X 6-Inch, Slip Joint Extension, With Nut And Washer. White plastic construction. 1-1/4-Inch outside diameter. Slip joint connection assembly, includes 1 nut and washer for complete installation. Commonly used with kitchen, laundry, or bathroom sinks. For use as Lavatory drain extension pipe.