Dan offers very competitive prices on filters and other aquarium supplies. I have been dealing with this company for quite a few years and am completely satisfied with how they have serviced my account. I have never had an issue with orders, customer service or shipping.
I was so impressed with the customer service! My order was on back order, and follow up emails were sent to let me know where the order was, when it would arrive, etc. Continual updates, which \i really appreciated. Once the order arrived, an email apologizing for the delay. (It didn't take that long) An excellent effort to keeping a customer happy!