The cone-shaped SteriPEN FitsAll filter can be used to clear particulates and debris from water prior to treating it with your SteriPEN UV purifier (sold separately).
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.