Can I Use Whirlpool Filter in American Plumber Water Case?

If you’ve just run out of your American Plumber replacement filter—or found a Whirlpool filter on sale—you might be asking: “Can I use a Whirlpool filter in an American Plumber water case?” It’s a common question, especially since both brands dominate the under-sink and refrigerator filtration market. While the idea of swapping filters sounds convenient…