It contains a surface skimming adapter, and a filter media basket to place inside the skimmer for added carbon, or whatever you may wish to use it for.
anyone know the web site to contact them? A friend of mine said they will ship a sprocket with more teeth that chops up the bubbles finer and allows it to work better. Of course he did it but is a fair weather friend. Lots of advise, all spectualation and may not work for you.