Product review (3 stars): Close but not quite compatible ...
The Water Sentinel WSS-1 is listed as "Replacees Samsung DA29-00003b". Well, that is close to correct, but not quite. The WSS-1 is slightly (about 1/2" or so) taller that the DA29. That little 1/2" doesn't seem like much until you try to insert the filter. In my Samsung refrigerator (freezer on the bottom, French doors, the top shelf on the right is not adjustable. It can be removed, but because of being supported by the icemaker, it has only one place it can go.

I removed the old filter, lubricated the new filter and reached in to insert it. The shelf was blocking it so that I could not get it inserted. I tried several angles. I was sure it would do in because i had just removed the old filter. Then I sat the old filter (a DA29-00003B) and the new filter side by side on the counter. The WSS-1 was just a bit taller than the DA29. It wasn't much ... but just enough.

I need to change the filter, so I emptied the shelf, removed it from the refrigerator, installed the filter, put everything back in, and closed the refrigerator so that the "door open" alarm would stop dinging at me.

The short of it is this filter is longer than the original manufacturer filter and that may make installation more difficult than expected. I will be going back to the DA29 filters.