Product review (5 stars): Fit Perfectly
A refrigerator sales person explained there are 2 sizes of water filters for the type of Samsung 3 door refrigerator we bought, a long cylinder and a shorter wider type.  This long cylinder filter fits our Samsung counter-depth refrigerator perfectly.  Super easy to install. Basically unscrew the old one and screw in the new one.  We plan on ordering more of these filters as needed.