The Cleaning Set from Tunze is a much needed maintenance kit for making sure your pumps and other critical equipment are kept in peak working order. Product manufacturers can only make their devices so durable and in the harsh, corrosive and biofouling environment of reef aquaria even the best water pumps will fail without regular preventative maintenance. We stress the term preventative maintenance because it is not enough to clean water pumps, powerheads and protein skimmers when their performance is noticeably reduced or when they fail; all aquarium devices which are in contact with aquarium water should be cleaned on a regular basis so that your aquarium can enjoy greater performance from teh equipment and so your product investments can work for you for many years. The Tunze Cleaning Set includes a host of brushes, tools, some mild acid and an instructional video on how to properly service and maintain the products which keep our aquariums alive. The Tunze catalog lists the cleaning set as retailing for over $60 but that was a typo and the 220.700 cleaning set will be retailing for closer to $45 when it becomes available any day now.