Keeney Polypropylene Extension Tubes allow you to extend the waste connection from your sink to your drain connection. This extension tube requires solvent welding for connection to pipe. All necessary nuts and washers are included and provide a strong connection so you can avoid leaks. The white polypropylene material is durable and made to last. Keeney is a leading manufacturer and distributor of tubular drainage products. Founded in 1923, the Keeney product line includes under-sink drainage, quarter-turn valves, bath drains, toilet repair parts, and more.