This is a certified used SaniServ’s Countertop Twin Twist Soft Serve Ice Cream/Yogurt Machine model W501. This is a water cooled condenser and 1 phase electric which is one of the best combinations for performance. This machine is perfect for establishments needing a medium volume unit. This model has an 11 quart capacity per side and and can product 4x 4oz servings per minute. Adding a soft serve machine to just bout any establishment can turn immediate profits without giving up too much space. The 501 machine is easy-to-use and designed to withstand the daily use of a foodservice operation. SaniServ soft serve machines are proudly made in the USA.