Keep your SteriPEN water filtration system fresh with this Replacement Filter Cartridge. Designed for use with the SteriPEN Water Bottle Pre-Filter and the FitsAll Filter, this cartridge filters out particulate using a 40 x 40 micron filter.

• 40 x 40 micron size nylon mesh filter
• Compatible with SteriPEN Water Bottle Pre-Filter and SteriPEN FitsAll Filter