Manitowoc Remote Tubing Kit, 20 ft. tubing length (pre-charged) R410A refrigerant, for 1500N & 1900N series. The pre-charged tubing connects the ice maker to the remote condensing unit. The length required for your specific location, must be taken into account when ordering a line set. Line sets for the previously listed series' come in 20, 35, and 50 foot lengths. This line set is 20' long. Please call us for more information, or for help determining what length you will need.