This pack comes with everything you need to connect your step up booster or your wave engine to your ReefBoxx. This pack does not include the booster or wave engine. If you don't already have a step up booster you can purchase one on our website and it will include this kit with the booster. Video to be released soon on the process of connecting a booster or wave engine. Please TEXT/CALL ME if you need any help at all, I am always happy to help.