The Do it Best 1-1/2 In. White Plastic Straight Extension Coupling allows for slip joint connections, creating a quick and easy installation process. This Straight Extension Coupling can be used with both 1-1/2 In. and 1-1/4 In. tube connections, featuring (2) 1-1/2 In. Washers and (2) 1-1/2 In. x 1-1/4 In. Reducer Washers. Constructed of durable white PVC material to match existing fixtures, the Straight Extension Coupling includes all necessary nuts and washers to provide a strong connection that avoids leaks.