Product review (5 stars): Buy these! Don't buy cheaper ones - they don't filter everything that these do!
It fits. It filters. It's available, and Home Depot doesn't actually carry them in store for the fridge we bought there. So they lose, Amazon wins. AGAIN. Seriously, you just can't beat Amazon. Also - these BRAND NAME ones are the only ones which have both levels of filtration recommended for safer drinking water (filtering out cysts, bacteria, etc.) The cheaper ones don't have #53, only #47 -- so these are the only ones I'll buy for my fridge and family!