Membrane Solutions Water Filter Straw w/ Case Orange. 400mL max flow rate. Pore size: 0.1 micron. Filters 99.999percent protozoan parasite micro-plastic bacteria. 4 stage design also filters large particles residual particles Chlorine harmful chemicals. Improves odor and taste. Includes carabiner attachment clip. Black nylon zippered storage case. Specifications for Membrane Solutions Orange Water Filter Straw w/ Case: Manufacturer: Membrane Solutions Pore Size: 0.1 microns Color: Orange Package Contents: Membrane Solutions Orange Water Filter Straw w/ Case Membrane Solutions OESF006Z: Water Filter Straw w/ Case Orange