refrigerator filters for water/ice (Greektown)

Someone stored these 3 filters in the freezer of the condo that I just bought from an estate sale (i.e. previous occupant is deceased). I don't think the fridge is even hooked up to a water supply, which could explain why someone wrote "doesn't work" on one package that's been opened. The packaging says these are compatible with Whirlpool, Maytag, Amana, JennAir and KitchenAid fridges. AS IS!!
Porch pickup near Danforth & Logan until Wednesday, then the house is sold and I no longer have access to the porch.