Product review (3 stars): They work
Looking at the photos in the product description I they show a filter with 1 "o" ring. The filters I got had 2. The description also says an "exact fit", 2 o rings is not an exact replacement over the Samsung filter. I recently sent back a brand with 2 o rings because they leaked and I was skeptical. With all that being said, I put one in and 48 hours later no leaks.