Product review (1 stars): Purchase these at your own peril.
I wouldn't recommend using these in your refrigerator; they are clearly not the same as the Samsung branded filters, and Samsung's recommendation that you only use their product is not just an attempt to monopolize the market. When I installed the first filter, the water flow abruptly cut while I was doing the initial flush. It resumed when I reengaged the switch by removing and replacing the jar I was filling, but began an alarming hammering noise that continued until and beyond the point where the water flow ceased again. I gave it a few tries but the hammering persisted and I removed the filter, because I recognized this as an indication that the pump was being overworked.
It may seem like a 75 dollar savings over the Samsung branded 3 pack, but you will spend more than that replacing the pump, even if you do the work yourself and much more than that if you hire a repairman because you burned it out on cheap filters.
I can't return the filters because I opened the three pack and installed one, but immediately ordered the Samsung filters and considered it a 40 dollar lesson learned. At least my pump still works.