The SteriPEN FitsAll Filter effectively removes particulates from water with the use of a durable 40x40 micron screen. Its unique design, featuring the filter cup and funnel fit, offers flexibility to filter water into bottles with a wide range of mouth sizes, including narrow-mouth bottles such as commercial water bottles, soft-drink bottles, canteens and SIGG™ bottles. On wider-mouth bottles, such as Klean Kanteen®, Gatorade® and Nalgene® bottles, only the cup is necessary.

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SteriPEN® Replacement Cartridge (SP-RC) is designed for the Water Bottle Pre-Filter and FitsAll Filter. It filters out particulates using a 40X40 micron size nylon mesh filter. Learn More

When clear water is not available, use the Water Bottle Pre-Filter by SteriPEN. The Pre-Filter filters out particulates and debris. Fits on Nalgene® and wide-mouth water bottles. Learn More

SteriPEN Bottle Topper for SIGG™ adds comfort to your SIGG™ bottle and allows you to purify water in the bottle with the SteriPEN Journey or SteriPEN Classic. Available in four colors, the Topper weighs only 8 grams (0.28 oz.) Sip in comfort and purify water as needed with SteriPEN Classic, Journey, Traveler, Emergency, Defender, & Journey Learn More