Securely extend the waste connection from your kitchen sink to your drain connection with the 1-1/2 in. x 12 in. Slip Joint Extension Tube. Made from durable polypropylene, it provides a reliable, long-lasting drainage solution. The washers fit perfectly on drain pipes and are easy to tighten. Includes a slip joint nut and leak-tight washer and features extra-large knobs for convenient, easy assembly. Oatey products have earned the trust of plumbing professionals for over 100 years.