MSR MiniWorks EX Filter One Size. These Water Filters created by MSR meets NSF protocol P231 for removal of bacteria and protozoa even in the worst quality water guaranteeing your water is completely safe to drink. With the AirSpring Accumulator the MSR MiniWorks EX Water Filtration System can filter up to 1 liter per minute for a remarkably fast flow. A carbon core removes any foul tastes and odors caused by elements such as chlorine and pesticides providing you with great-tasting water to quench your thirst. Safely stay hydrated on your next backpacking trip by using the MSR MiniWorks EX Microfilter. Specifications for MSR MiniWorks EX Filter: Manufacturer: MSR Color: Black/Red Pore Size: 0.2 microns Fabric/Material: Ceramic Plus Carbon Weight: 1 lb Floor Area: 7.5 in. x 2.75 in. Water Treatment Type: Protozoa Water Filter Method: Pump Cartridge Life: 2000 L Field Maintainable: Yes Flow Rate: 1 Liter per min Features of MSR MiniWorks EX Filter Testing: Meets NSF protocol P231 for removal of bacteria (99.9999percent) and protozoa (99.9percent) from beginning to end of filter life in worst-case water. Reliable: Durable carbon/ceramic element ensures safe taste-free watereven with frequent heavy use. Field-maintainable: Can be cleaned repeatedly for full filter recovery with no tools required. Fast Flow: AirSpring Accumulator increases filtration speed; up to 1-liter per minute. Better-tasting Water: Carbon core removes unpleasant tastes and odors caused by organic compounds such as iodine chlorine and pesticides. Package Contents: MSR MiniWorks EX Filter MSR 14006: MiniWorks EX Filter One Size