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Your cart is empty.Access potable water anywhere. The 42mm filter is perfect for trail running, cycling or backcountry water fIltration. Compatible with all 42mm opening HydraPak products including, running flasks, Seekers and Flux bottles. Avoid freezing filter. Freezing may ruin the hollow fiber membrane. Filter Kit includes:42mm Filter Cap Product use and care instructions*Effectively removes common waterborne bacteria, such as E. coli (99.9999%), and parasitic cysts (99.999%) per EPA Guide Standards and NSF P231 and microplastics (99.999%) per NSF 42 greater than or equal to 3.0 microns in size.EPA COMPANY NO.:102123EPA ESTABLISHMENT NO.: 102123°CHN°1Weights and DimsDiameter: 42mm / 1.65 inWeight: 57 g / 2.0 ozLength: 129 mm / 5.1 in
James Andrew
Reviewed in the United States on March 7, 2025
Bought to pair with a collapsible water bottle for a trip to Mexico. Worked great, no stomach issues while drinking water from several sources.
John Paulson
Reviewed in the United States on January 19, 2025
Have used these the last few years in the Colorado high country for filtering water. The hydrapak bags seem to be better than Sawyer bags. Fast flow. Have not had issues with clogging as long as you use decent water to start and are careful up front to avoid sediment.
Mr. Customer (JPN)
Reviewed in Japan on July 28, 2024
こちらのHydrapakの42mm FILTER CAPは、mont-bellの2024年版Flex Water Pack（旧版ではない）とシンデレラフィットです。これで野営しても沢から水を汲んで浄水して飲めます。また、セット後はmont-bellのパックと本品のキャップがグレー同士で色合いがいい。スイスのフィルターキャップは青の意匠面が出るので野営には「ん？」となるので、こちらの組み合わせの方がおすすめです。
アンドレT
Reviewed in Japan on July 26, 2024
公園の水道水を使いましたが、嫌な臭いもなく、浄水器として優秀です。
Cory
Reviewed in Canada on November 14, 2024
I have purchased 3 salmon models throughout the years. The Flow rate on this hydrapak was much higher than a new salomon model. I like the locking closing cap. Overall this is a slightly better design than the salomon and I will buy this model moving forward.
Xavi E.
Reviewed in Spain on October 17, 2024
lo he usado varias veces de momento todo bien sin dolores de barrga
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