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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
Bob
2025-08-23 17:20:32
Fit my 3 liter water bladder perfect.
John Paulson
2025-08-10 15:50:02
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.
Dustin M
2025-05-10 21:56:41
love this product! bought to take on my long ultra-marathon trail runs. have run into a few incidents where I needed to refill while on the trail. such a game changer. would highly recommend if you are looking for another option to refill on the trail and keep fresh water.
Tom H.
2025-04-18 15:40:48
Used on AT, got slightly clogged a few times, but shook it in the water and worked fine again. Would recommend.
Gentle Reader
2025-04-08 15:54:19
These work great combined with the 2 liter bottle they sell. We used these on a recent trip to South America where water from the tap was not drinkable. We poured tap water to the 2 liter bottle then filtered it into other reusable bottles we brought with us. We also have a Travel Berkey we bring if the water is really sketchy (with pre-treatment using plain bleach as needed to kill virus and amoebas).The flow rate on this filter is great and you can’t get a lighter system to travel with.
R. Burton
2025-04-04 13:24:18
I got this to work with either a HydraPak or a BeFree. Has a great flow rate. Haven't tried it in the field yet.
James Andrew
2025-04-02 16:53:34
Bought to pair with a collapsible water bottle for a trip to Mexico. Worked great, no stomach issues while drinking water from several sources.
Elena Light
2025-03-22 11:31:46
Great quality, fast shipment. I am happy with my purchase. I recommend it
Xavi E.
2025-02-05 14:33:52
lo he usado varias veces de momento todo bien sin dolores de barrga
Cory
2025-02-04 11:52:57
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.
Mr. Customer (JPN)
2025-01-28 18:37:47
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2024-12-31 10:02:16
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2024-12-19 10:19:37
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