Never buy another charcoal/activated carbon filter for backpacking ever again. Never worry about leaks because this diy job uses no glue. Properties: removes chemical tastes from your water, improves water taste, easily field serviceable, self-cleaning(germs), not likey to freeze, removes foreign chemicals/contaminants, save money and time. With the purchase of bulk materials and the necessary parts you will be able to refill this system for years to come, saving you lots of dough you would have spent buying another filter. This system is meant to be used with chemical treatments like chlorine dioxide tablets or bleach. To prevent freezing, simply blow as much water out of the filter as you can when your done using it. This will also restore filter nearly back to its original weight before being used.
This filter wil also work in an inline cambelbak type system, You can easily suck water through it.
A note about results: Results will be directly dependent on the quality of your activated carbon, density inside the unit and exposure time.
See youtube description for links:
Total cost Bulk purchase: $57-$67
Total cost Sample sizes: $$32-$40
(1.)Suitable activated carbon(I have not tried the 20x50 sizes, they may seep through 1 micron material I dunno. Check the size chart after clicking the description):
About $30-$40 bulk or $10(shipping included):
Calgon Activated Carbon information:
(google search calgon after deciding which you want)
(2.) 1 (or ½) Micron biodiesel filter material:
Ebay, bought bulk about $25 shipped
Bought small portion: about $10
(3.) Yorker caps from Usplastic:
#66112, #66113, #66114
(4.) Coghlans contain-alls:
Online $10 shipped
(5.) 5 Hour energy bottle:
Or order the coghlans contain alls and thinner bottles off usplastic and try to come up with your own combo of thinner bottles.