I like the vortechs, I run 3 on 3/4'' acrylic, and really like the clean look of no cords in the tank, the heat and electricy from the motor are outside of the tank, and the varied flow they produce.
I did have a problem with the oldest unit I have, the black transformer box quit, after an email, they had a no charge replacement in the mail. Very good, not great customer service, but overall, a very good product IMO
Chad, do you want to sell that Vortech?