Katadyn Steripen Pre-Filter

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When in use, pour water through the durable 40 x 40 micron screen filter cartridge to fill the bottle. Then, you're ready to purify the water with a Steripen UV water purifier. Rem ove the filter cartridge from the Pre-Filter, insert the filter into the centre of the filter, flip the bottle, and agitate the water until the Steripen indicates the treatment is complete. Show more