A Review of the Frontier Pro Water Filter by Aquamira

The Frontier Pro Ultralight Water Filter provides the benefits of a bigger filter in a compact size.  It will filter up to 50 gallons. Light in weight, only 2 ounces, it will fit in the palm of your hand. It measures less than six inch in length and about 1 ¼ inch in diameter.  It has a replaceable pre-filter to take out the larger particles.  It comes with four extra pre-filters .

It consists of four parts, the body of the filter, a pre-filter, a ring that retains the pre-filter and adapts to any 28mm threads, and a drinking tube.

The filter can be used in two ways, one to suck water through or two as a gravity flow filter.  To suck  water, install the pre-filter in the adapter ring and tighten on the filter body, then attach the drinking tube to the intake.  Pop the top off the bite valve, place the drinking tube in the water and suck.

The second method  gravity flow, screw the filter on to any container with 28mm threads, this includes most spring water bottles.  Pull the bite valve off and turn upside down.  The water will flow through the filer.  Make sure you have a tight fit and no leaks.

The Frontier Pro has the following features

Filter type: activated carbon

Efficacy: removes 99.9% of Cryptosporidium, Giardia and other contaminants down to 3 microns

Pre-filter: porous plastic microfilter

Attachment: attaches directly to standard mouth sport water bottles, personal hydration drinking tubes, or hydration reservoirs

Strap Grip: Protects the Bite Me Valve from contamination and secures cap when in use.

Miraguard: Suppresses the growth of bacteria, algae, fungus, mold, and mildew within the filter

While using the filter I have made the following observation,  the straw feature works well for adults and older children.  For very young children I think the amount of suction would be more than they could provide.  Any normal adult should have no trouble using it.

The gravity flow works well and it readily screws onto any bottle with 28mm threat.  This includes the platypus and most spring water bottles.  You want to double check the seal on the spring water bottles to make sure there is no leakage.  When I encountered leakage it was from the poor quality of the water bottles not the filter.

The system seems to work well and I would have no problem using it in the United States, but if I were going to a third world country where viruses were a problem, I would pre-treat the water with Aquamira chlorine dioxide tablets.

Because of its small size I can stuff one in my pocket when going for a hike.  It fits well in bug out or get home bags.  I have several of the filters and I use them.  Freezedryguy sells them for $24.95.


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