MSR AutoFlow Replacement Filter Cartridge Black. If you have the MSR AutoFlow Gravity Filter you should pick up some of the MSR AutoFlow Replacement Cartridges. Having a few extra cartridges on hand and with you while out in the woods or traveling allows you to quickly swap the one in the filter out while on the go so that you always have clean safe water. Specifications for MSR AutoFlow Replacement Filter Cartridge: Manufacturer: MSR Color: Black Size: One Size Age Group: Adults Application: Camping Fabric/Material: Hollow Fiber Seasonal/Temperature Use: All Seasons Weight: 2 oz Cartridge Life: up to 1500 Liters Flow Rate: 1.75 Liters per min Width: 2 in Length: 6 in Height: 2 in Features of MSR AutoFlow Replacement Cartridge V2: Effective against protozoa bacteria and particulates Package Contents: MSR AutoFlow Replacement Cartridge V2 MSR 6201: AutoFlow Replacement Filter Cartridge Black