Features:

• FitsAll filter features a durable 40 x 40 micron screen that removes particulates larger than 40 microns from water while you fill your bottle
• Just as the name implies, the filter fits nearly any size bottle on the market, from generic single-use plastic bottles to name-brand reusable bottles
• Filter also enables the Steripen Journey, Classic and Traveler purifiers (sold separately) to be used with wide-mouth bottles in the inverted position for simple purifying
• Rugged, flexible material allows the filter to stow away compactly and then snap back to shape when unpacked
• FitsAll filter weighs 2.3 oz. (65g) and measures 3.7 x 3.5 x 2.8 in.