Msr gravity filter - MSR AutoFlow Replacement Cartridge V2

THE best....get 3+ Liters in minutes. ..it filters faster after the first few minutes when the filter is wet inside. ..I try to filter as clean moving water as I can get....we used it last weekend in mountains near Tucson. ..filtered over 12 liters...no muss no fuss no work involved. ..all gravity

This review was written in the old system and had content requirements that are different than reviews written today.