A unique self-cleaning perform means you never have to wash or scrub the filter the way you do with different pumps as a result of 10% of the water is used to backflush itself on each stroke. No carbon although, so it received’t do a lot for the taste or chemical safety. The backside can screw onto a wide-mouth Nalgene bottle so the output water drops proper in. We want it came with an output hose, however you can add one should you’d like or use hoses/attachments from different methods/bladders. We additionally want it had stronger supplies like the Katadyn Pocket.

Has rechargeable carbon filter, but we dislike the way it’s carried out. Katadyn describes the Mini as much less efficient with backcountry water than the Hiker Pro, so whereas this is a good mannequin, it loses to the Pro. Almost two-thirds lighter than the venerable Katadyn Pocket, however the portability and lengthy filter life comes with the draw back of taking longer than average to pump a liter of water. Easy to scrub in the subject, with a wise constructed-in measurement tool that tells you when the filter is now not ok. The Mini has less items than the other Katadyn filters, which we at all times choose.

The enter hose wraps up inside itself to retailer inside a compartment on the bottom of the filter, reducing the concerns about cross contamination during storage. This looks like a white-labeled model of the Survivor Filter PRO, doubtless from the identical Chinese producer. Reports of only working for a bottle or two price of water earlier than needing to wash the filter. The Katadyn Pocket is a very popular upgrade that can usually be discovered for ~$a hundred less than the Guardian. The zero.2 micron silver-impregnated ceramic filter lasts for an enormous 50,000 L .

The Pocket is even bigger than the Guardian at 20 oz and 10”. Extremely long filter life, sufficient to maintain one person alive for over 15 years. We want it was easier to dry out for storage / throughout freezing temps, nevertheless it’s a minor complaint. Doesn’t include a carbon filter, however they promote a carbon add-on piece.

Can run it as a straw, attached to a normal 28mm bottle, inline with a hydration bladder, or inline with a gravity bag. Uses Aquamira’s replaceable Series III Green line filters (micro organism/protozoa, no virus safety).

0.2 micron glass-fiber/ceramic/carbon filter for 2,000 L . They named it a Vario because it has numerous filtration settings like “fast mode” and “soiled mode”. This could make sense for hikers and campers, however in an emergency scenario we think it’s counterproductive and prefer different fashions. Innovative dual-stroke lever pump, which pushes water by way of on the up and down strokes, leading to a quicker per minute flow price.

Limited metallic and chemical safety via the carbon core. This model effectively replaces the old and popular MSR Sweetwater. Field maintainable without any tools, though there are larger-than-usual critiques about the filter clogging shortly, requiring frequent cleaning, and durability issues around the pump handle/piston. Similar to the Guardian, it’s designed to directly connect to sure bladders and Nalgene-style bottles, or you possibly can attach a hose to the output nipple.