Product review (3 stars): hole is definitely larger, work quickly to avoid a mess!
As many others have pointed out, the hole on the end of this is much larger than the Samsung brand filter which leaves pretty big potential for leaks and issues when installing.  Reading what others have written about the install being very messy/wet, I was prepared with towels for a major clean up . . . luckily we didn't need the scuba gear and operated as quickly as we could to avoid major mess.  If you want to roll the dice with this maybe not fitting as snug as it should this would be a good purchase but if you are at all concerned about possible water damage to hardwood floors or something along those lines I would suggest sticking with the brand-name filters