Product review (5 stars): 18 Months Worth of Clean Water Coverage
I don't know about anyone else, but, when I was a kid and I knew someone that had a water dispenser in their fridge I never heard their parents talking about changing the filter.  Never once.  For all I know, the water lines in that refrigerator could have had so much sediment it was the equivalent of taking a scoop of toilet water and gulping it down.  Which, is relative considering its not the water that makes your toilet nasty.  It's you not properly cleaning your toilet.

Anyway, so of course now that I've got my own fancy fridge with a fancy water dispenser and ice machine I notice that it gives me a sweet, little message every six months that it's time to change the filter so I'm not drinking poison-laden water.  That's where these little gems come in handy.  I've purchased filters from Home Depot that were compatible with my fridge, but, they did not come in a pack of three and they certainly not the value that you get when you make this purchase.  I would have paid triple if I'd decided to get them anywhere but WATERDROP.  Now my kids can safely drink water from the dispenser; we can have ice fights in the kitchen without worrying about the ice melting and releasing noxious gases in my house.  It's paradise.

Seriously though.  These things are worth it.  And if you don't have the brain of an opossum you can easily unscrew the old one and screw this one back in without hurting yourself.