The McAlpine 1 1/4" X 21" Standing Waste X 3 1/2" Tail Swl-21l is a plumbing accessory used for draining standing water in a basin or sink. It has a 1 1/4" diameter fitting and a 21" height, making it suitable for use in commercial or industrial settings where deeper basins or sinks may be present. The 3 1/2" tail allows for a secure connection to a drainage system, and the overall construction is made of durable materials to ensure long-lasting use. This standing waste also includes a removable grating for easy cleaning and maintenance. ・ Available in 1¼" and 1½" sizes ・ Available in 2 tail lengths. 3 ½" tail and 1 ½" tail. ・ Supplied with Backnut and Washers ・ Standard length of Stand Pipe is 18" if other length required, when ordering state: (1) Code (2) Height required if not 18"