- Katadyn
- www.katadyn.com
- Sells water purification filters. Also includes online versions of the original instructions.
4.0
(si*)
>360
-
4
- James Filter
- www.jamesfilter.com
- Carries British Berkefeld and Doulton water filters and cartridges.
3.3
(si*)
>20
-
2
- Aerobic Oxygen
- www.oxygenforlife.net
- Makes and sells an additive for purifying water.
3.1
(si*)
>40
-
0
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