Clear Flow Filter Replacement


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The Clear Flow Filter Replacement has been rigorously tested and surpasses EPA standards for removing E. Coli, Giardia and Cryptosporidium. The Clear Flow filters down to 0.1 microns without the use of chemicals, iodine or batteries. But the Clear Flow Filter Replacement goes one step further than most competitive products and also reduces heavy metals, such as iron and lead. The Clear Flow also reduces many chemicals found in the water supply as well as improves the taste and color of the water. Competitive products that only use hollow fiber do nothing to remove the dirty taste of water or improve the color of the water. It may be safe to drink, but it is still going to look and taste like dirty water. With the Clear Flow the water will be safe to drink and will actually look and taste good.

Once the Clear Flow filter has reached its capacity (1,500 liters / 400 gallons) it will no longer allow water to pass through it. The filter easily detaches from the bottle and can simply be replaced.

The filter replacement measures 5.75" x 1.25" and weighs only 2 ounces.

Warranty Info


  • Ideal for outdoor recreation, hiking, camping, scouting, domestic and international travel, emergency preparedness and your everyday 9-5
  • Removes 99.99999% of all bacteria, such as salmonella, cholera and E.coli; removes 99.9999% of all protozoa, such as giardia and cryptosporidium
  • Activated Charcoal reduces heavy metals, iron, sulfur, negative taste and any discoloration from your water
  • Easily attaches to a variety of straw-style water bottles
  • 0.1 Micron Hollow Fiber membrane


  • 1 Clear Flow Filter Replacement


  • Filter Material: Hollow Fiber and Activated Charcoal
  • Removes: Bacteria, Protozoa, E. Coli, Giardia, Vibrio cholerae, Salmonella Typhi, heavy metals, diesel fuel, bad taste
  • Cartridge Life: up to 400 gallons

Manufactured by HydroBlu

10 Reviews Hide Reviews Show Reviews

  • 5
    Clear Flow Filter...

    Posted by timothy trent on Dec 28th 2023

    Clear Flow Filter Replacement

  • 5
    Excellent Product, Excellent Customer...

    Posted by Kevin Wager on Jan 24th 2023

    I've been using my Hydroblu water bottle with the Clear Flow filter for a few years and decided it was time to replace the filter. I order two replacement filters, receiving them in a very timely fashion at a very reasonable price. I definitely intend on buying other Hydroblu products in the near future.

  • 5
    Couldn't be...

    Posted by Billy Sweeney on Feb 10th 2021

    Exactly what I ordered, will be ordering MANY more. Highly recommend

  • 5
    Easy to use...

    Posted by Scott Conerly on Apr 28th 2020

    Very easy to use the easy flow. Replacement is simple also. My favorite filter for hiking

  • 5
    For the...

    Posted by dennis calehuff on Sep 7th 2019

    I haven't used them yet, but is good to know when I do need to filter drinking water...I have the right product. But the most important thing is that I have something to give to the kids and grand kids and feel confident they too will have good water to drink. Thanks HYDROBLU DMC from Pa. USA

  • 5
    Five stars

    Posted by Tina Romero on May 30th 2018

    I was so happy they had these replacement filters for my Clear Flow! Got mine last week and it was beyond easy to pop it back on my water bottle and go.

  • 4
    Good replacement

    Posted by Stacey Jarmillo on May 20th 2018

    Nice to have a replacement for my water bottle where as before I just had to buy the whole set up all over again. Filter works great and is like new again.

  • 5
    Great backups!

    Posted by Heather Steffon on Mar 5th 2018

    I've had my clear flow for awhile and love mine! Fantastic for hiking! So when these became available I bought 2! One for now and one as a backup of course! Super easy to replace =no brainer!

  • 4
    Clear flow replacement

    Posted by Francis T on Feb 26th 2018

    I'm glad they have a replacement filter for my water bottle now. Bought the clear flow a couple years back and the flow rate wasn't as good anymore. Got one of these & my water bottle is like brand new again.