Keeney White Polypropylene 3-Way Coupling Tees allow for slip joint connections, creating a quick and easy installation process for your next under-sink project. This coupling can be used to join a 1-1/2 in. tube to a 1-1/2 in. wall or floor connection completing traps or other similar installations. The included heavy-duty washer protects against leaks for a problem-free connection so you can install with confidence. 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.