The K9000 Compact 1.0 is the same size as the K9000 Compact 2.0 but based on the original K9000 Standard 1.0 design. It is robust and low on maintenance and very easy to use. This machine is ideal for small spaces / condos. Fits small to medium sized dogs and light on budget. This machine needs to be operated in an environment which is at least 5 degrees c. Winterization is required if leaving outside in winter months.