Product review (5 stars): Very happy!!
I had no clue which filter I needed for my Samsung refrigerator.  When I started searching various vendors (Appliance stores, Best Buy, Amazon), I was even more confused.  The price points were all over the place; anywhere from $29-$129 for basically the same water filter!  I decided to take a chance on Certified Battery, which was the most reasonably priced filter, but also provided helpful information.  My order was filled within a few days, the filter worked perfectly and I was able to purchase TWO filters for the price of one.  I will definitely purchase from this vendor again.  I have recommended this company to friends and relatives.  My son-in-law spent $79 for ONE filter for the exact same model refrigerator.  I spent  $24.99!!  Needless to say, I am very happy!