Product review (5 stars): Go with the 2-pack!
Fits like a glove! Thanks for offering 2-pack. It's great because when I see the amber light on my fridge indicate it's time to change the filter, I already have an extra in the drawer. Just make sure you're organized, though, and don't forget it's there. Once installed, run a few glass of water through and the water tastes fresh and looks clear.