Product review (1 stars): CHECK FILTER TYPE BEFORE BUYING A REFRIGERATOR AND AVOID WHIRLPOOL.
This filter has less than 200 gal capacity.  It costs twice as much as other filter designs that have 2-3 times the capacity.  Moral:  DON'T BUY REFRIGERATORS MADE BY WHIRLPOOL AND THAT USE THIS FILTER DESIGN.  The refrigerators may be sold under various brand names.