MSR TrailShot MicroFilter Clear. Weighing only 5.2 ounces and measuring 6 inches in length you can drink directly from the source or refill your waterbottles with the TrailShot. It has a flow rate of 1 Liter per minute and uses a hollow fiber filter for top-of-the-line filtration to protect you from waterborne bacteria protozoa and particulates. It's small enough can keep one in your pocket and some backups in your backpack to ensure you have plenty to use whenever you're running low on water. Specifications for MSR TrailShot MicroFilter: Manufacturer: MSR Color: Clear Size: One Size Height: 6 in Age Group: Adults Fabric/Material: Hollow Fiber Weight: 5.2 oz Water Treatment Type: Protozoa Cartridge Life: 2000 liters Field Maintainable: Yes Flow Rate: 1 Liter per min Width: 2.4 in Length: 6 in Features of MSR TrailShot Microfilter: Pocket-sized and light: Like small water bottles mini bike pumps bike tubes and evergy chews this 5.4 oz microfilter hides easily in stash pockets Clean water all day: Drink directly from the source-without lying in the dirt-and refill multiple bottles with clean water for later down the trail Quick and easy to use: Quick-deploy design and simple squeezing action fill 1-liter bottles in a mere 60 seconds Simple to clean: A few shakes helps restore flow rates in the field; no tools required Tested: Meets U.S. EPA drinking water standards and NSF protocol P231 for removal of bacteria (99.9999percent) protozoa (99.9percent) and particulates Package Contents: MSR TrailShot Microfilter MSR 9385: TrailShot MicroFilter Clear