Got a flier in the mail for Aquarium adventure store in columbus with some really good sales. 50 percent off on many filters, good sales on tanks and most fish are 50% off. The best one was for saturday only if you bring in an old filter they will give you a new aqua clear filter of the same size for free. The catch is that you cannot bring in an old aqua clear it has to be another brand. The flier said while supplies last so hurry in if this free filter works for you. I had to work today or i would have traded one of my old filters in. Some of the bigger aqua clear filters are pretty pricy around 70 to 90 bucks new.