This was my first experience ordering filters from Filters Fast. I ordered according to the refrigerator handbook. The filters (3) arrived in a plastic envelope and the box containers were not in the best condition. As I opened one of them, it was visibly the wrong filter. In fact, the refrigerator filter has a different code and size than stated in the manual. I contacted Filters Fast to return them and to purchase the correct filter. To my surprise they told me that I would receive credit for only 2 because I opened the box. (how do I know if it is correct if I did not open the box?), which by the way was already unsealed. I am returning the filters. I will get credit for only two but Filters Fast is losing a customer. This is a case of penny wise,