Because SICCE�s NEW PSK SDC 1200 matches the same design and size of the popular traditional SICCE PSK 1200, this Skimmer Pump represents a simple and immediate upgrade to all protein skimmers currently equipped with the SICCE PSK 600, 1000 or 1200. Additionally, the PSK SDC 1200 is a natural skimmer pump upgrade for all other protein skimmers where a reliable, efficient and well performing needle wheel pump is required.