The Katadyn Combi is our favourite medium sized water filter. We’ve used one to filter almost all of our water for a combined total of 6 months while on one of our expeditions. We can attest to the excellent build quality that one can expect from Katadyn products.
General Ecology’s First Need water purification system has not got the press or reputation that the other major brands have taken. However, note this unit doubles as a water purifier as well as a filter. Purification means it can kill harmful viruses as well as filter out the bad bugs.
Katadyn is a Swiss company who has produced some of the best quality expedition water filters in the business. Their pocket microfilter is a great unit for personal use - it is extremely robust, light-weight, and reliable, with the history to prove it. Katadyn’s pocket microfilter has been on the market for over 50 years!