We sell one by Game, called AquaQuik, very similar to one we carried before called the Spa Wand. Both retail around $60 (U.S.), and we use them in all of our stores. I love them, and highly reccomend them to customers.
The AquaQuik I do prefer a bit better, although they are almost identical, but for the same price it has a few extra attachments. Hope this helps!