Free - 2 brand new Pureline/MWF refrigerator water filters.
We ordered the 3 pack of these in May b/c we got an indicator that our filter needed replacing. We installed it, then our fridge died several months later. Bought a new refrigerator that these don't work with so these 2 filters are brand new and unopened.
Our old fridge was a Whirlpool WRS973CIDM, but these will fit a variety of other makes and models as well.
The attached photo shows the Amazon page of my purchase. Check the actual Amazon page (Pureline MWF) for a list of tons more makes/models that these will work with.