THE ONE STAR IS FOR ACE DIGITAL, NOT THE PRODUCT ITSELF. What I received from ACE DIGITAL was FS46, NOT the FS46U; they are totally different filter sets. When I informed them of their error, they gave me a return authorization number, and said they would ship the correct item upon receipt of the wrong filter (by the way, I had to pay the shipping to return). I gave them almost a month from the day I shipped the product back ship the correct item. I ended up having to call them again and that's when they told me they didn't stock the FS46U. While they did credit my account, I was displeased with their service. I would recommend you contact the seller before ordering to make sure they know the difference between these filter sets.