New, never been used. Here's a link to a description of this filter. http://www.fantasticaquatic.com/product_info.php?cPath=108_111_112_113_220&products_id=669 I was going to add this filter to a pond, but decided to go in another direction. As you can see, this filter sells for $399. I'm selling mine for $200, plus shipping. I will accept either a debit/credit card payment, or a check from the purchaser. If interested, please PM me. Thanks.