Product review (5 stars): YOU CAN'T BEAT THE PRICE, AND IT WORKS!!
OUR REFRIGERATOR USES THIS TO FILTER THE WATER FOR ICE MAKING AND DRINKING.  IT IS FILLED WITH ACTIVATED CHARCOAL AND ONLY LASTS FOR 6 MONTHS BEFORE YOU ARE FORCED TO REPLACE IT.  I FOUND THIS COMPANY ON LINE AND THEY WERE SELLING TWO FOR ABOUT THE SAME PRICE SEARS HAD ON ONE.  IT WORKS FINE, I HAVE A SPARE IN STORAGE AND THE WATER IS FILTERED AGAIN.  OH, BY THE WAY, THE WATER WHERE I LIVE IS NOT DRINKABLE IT HAS A SLIGHT ODOR AND TASTE.  THIS THING CULLS IT OUT AND I USE IT EVERY DAY!