FILTER WAS JUST INSTALLED A FEW DAYS AGO SO I REALLY CAN'T SAY HOW EFFECTIVE IT'S GOING TO BE, BUT IN ALL PROBABILITY IT WILL BE JUST FINE. IF IT ISN'T, YOU WILL BE THE FIRST TO KNOW.
First time buyer, quality of the filters is good and you can't beat the convenience. Much easier, and cheaper than buying filters at the store. I'm hooked!