Read the stated micron rating, the flow, and the cartridge life · review
NATURBUMMLER foldable 750 ml filter bottle review
A rollable 750 ml filter bottle that publishes its volume and a 200 liter cartridge life, and gives no pore size at all — the shortest stated cartridge figure on this shelf with the least said about the element behind it.
A 750 ml volume, a foldable and rollable bottle, a three-stage filter system, a cartridge life of 200 L, a carabiner, and a description of the whole as ultralight.
The empty column
No pore size. Not in the title, not in the bullets, nowhere. Six of the nine filters in this family publish one, and this is one of the three that does not. It is the single figure that describes what the element is built to hold back, and its absence is not something the three-stage claim replaces.
No named stages either. Three is a count. It does not say whether the stages are a membrane and two pre-filters, or carbon three times over.
The figure it does publish
200 liters. That is stated, and it is short. Set against the 4000 and 5300 liter figures elsewhere on this shelf, it changes how often a replacement is bought — which is precisely why the number belongs in the title, and it is there.
How the maker’s claims are written here
The bullets carry a 99.99% figure for bacteria and germs. It is reported here in one form only, with its author attached: the maker states 99.99% of bacteria. This page does not say what the filtered water may be used for. The maker’s instructions and the local authority where you are filling are what answer that.
Before ordering
Look at the cartridge figure against how you walk. Two hundred liters is a season of weekends or two weeks of hot days, and the replacement element is the cost that follows the bottle.
Availability
The American Amazon store returned nothing, so the buy link opens a local search rather than a page that is not there.
Every figure here is what Keepa held on the day this page was last revised. Offers and prices shift without warning.
What it does well, and where it gives way
Strengths
Publishes the bottle volume at 750 ml, which is a real number and larger than several bottles on this shelf
Rolls up when empty, which is the property that decides whether a filter bottle stays in the pack all season
The cartridge figure is stated plainly in the title rather than buried
Compromises
No pore size anywhere, so the column this hub leads with is empty
A three-stage system is claimed and the three stages are never named, which leaves the element undescribed
200 liters is the shortest cartridge life published here, and there is no flow figure or weight to set against it
Specifications
Micron rating
Not published on the listing
Filter element type
A three-stage filter system — stated; the three media are not named
Stated flow rate
Not published on the listing
Cartridge life
200 liters — stated in the title
Weight
Not published on the listing — described as ultralight, without a figure
Format
Foldable, rollable 750 ml filter bottle with a carabiner — stated
Bottle thread compatibility
Not published on the listing — the filter is part of the bottle and no thread size is published
Amazon reference
B0C81BR54S
EAN
4262372760050
What people ask before buying
Is 200 liters a lot?
It is the shortest cartridge figure published on this shelf; others state between 1500 and 5300 liters. Cartridge life is what decides running cost, so a short figure is worth knowing before rather than after, and this one is at least printed in the title.
What does three-stage tell you?
On its own, very little. Makers who publish stages usually name them — a membrane, a carbon block, a pre-filter — and this listing names none of the three. The count is a claim about complexity, not about pore size.
Does NATURBUMMLER publish a micron rating?
No. Not published on the listing. What the listing does publish instead is the filter element type: A three-stage filter system — stated; the three media are not named.
Our score
7.8/ 10
The bottle is honest about its volume and its cartridge, and silent about everything that describes the element. That silence is the reason to hesitate.
The buyer this one serves, among camping gear
Occasional use where the bottle folding flat matters more than the specification behind the element.
What buyers actually choose
Amazon reports what buyers took in the month before this page was last checked: at least 50.
The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.
Sources
Specifications: the manufacturer sheet for camping and hiking gear and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
0.01 micron, doubled, stated · six-level system with UF membranes, PP cotton, KDF and carbon · 700 ml/min from an electric pump · 168 liters per charge, which is not a cartridge life · 350 g (12.3 oz) · 1.5 m (5 ft) hose · emergency light
The only electrically pumped filter in this group — six stages, a 1.5 meter (4.9 ft) hose and 700 milliliters a minute — publishing a liters-per-charge figure where this shelf asks for a cartridge life.
Best for: Group use at a vehicle camp, where pumping by hand for twenty liters is the thing you want to avoid
Press filter bottle · 500 ml · 0.2 micron stated · hollow fiber with carbon · 1500 liter cartridge
A 500 ml press bottle that publishes volume, pore size, element type and cartridge life — four of the seven columns this hub compares — and quotes the coarsest micron figure of the six filters here that give one.
Best for: A short walk or a run where one small bottle refilled at the stream is the whole water plan.
Press bottle · 710 ml · 250 liter replaceable cartridge · no pore size published
A 710 ml press bottle with a replaceable cartridge rated at 250 liters, and the most talkative claim list on this shelf — every one of which is written here as the maker’s claim, because no pore size is published to check any of it against.
Best for: Travel where one bottle is treated at a time and the cartridge is expected to be replaced as a routine cost.
