The opening decides whether it dries; the litres only decide weight · review
deuter Streamer II 3.0 L reservoir, slide-clip closure, 130 g review
The only reservoir on this shelf to publish an empty weight — 130 g — alongside a slide-clip closure, full outside dimensions and a bladder the maker states can be turned inside out to clean.
The bottom line The only listing here that weighs itself, measures itself and says how it is cleaned. What it does not do is name its own film.
What this listing puts on record
Three litres, a soft bite valve with high flow that closes automatically, a slide-clip closure stated to be easy to assemble, easy to fill and leak-proof, a bladder that can be turned inside out for cleaning, frost resistance and heat resistance to 40 °C, a hanging device for packs and vests, dimensions of 330 mm × 170 mm × 50 mm and a weight of 130 g.
The two numbers nobody else prints
130 g. Eight other reservoirs in this family describe themselves as ultralight and none of them weighs itself. This one does, and a figure is the only thing that can be compared.
330 × 170 × 50 mm. Full outside dimensions, so whether it fits the sleeve in your pack is a question that can be answered now rather than on arrival.
The cleaning story, told properly
A slide clip opens the whole top edge, and the maker states the reservoir can be reversed. Between them that is the arrangement this family is really judged on: an inside surface you can reach, and a bladder that dries without a frame.
What is left out
Film material. Not named. Seam construction. Not named. Hose length and bore. Neither published, which means the tube is another thing to check against your pack routing.
Before ordering
Hold the 330 × 170 mm figure against your reservoir sleeve, and note the 40 °C ceiling if the pack lives in a car boot in summer. Both are on the page, which is more than most of this shelf offers.
Availability
Selling between 35 € and 48 € across the German, French, Italian and Spanish Amazon stores when this page was checked.
It also sells on the American and British Amazon stores in the local currency, which the range above does not cover — that range counts euro stores and nothing else.
Every figure in this section is what Keepa returned on the day this page was last updated. Prices and offers change without notice.
Prices quoted in this text were read on 6 September 2026. The live price is at the top of the page.
What it does well, and where it gives way
Strengths
The only empty weight published on this shelf, at 130 g, and the only full set of outside dimensions at 330 × 170 × 50 mm
A slide-clip closure with a reservoir stated to turn inside out, which is the arrangement that actually dries
A bite valve that is stated to close by itself, so there is no lock to remember before the pack goes on
Compromises
No film material named, and no seam construction, on a reservoir otherwise well described
No hose length and no internal diameter, so what the tube fits is unknown
Heat resistance is stated only to 40 °C, which is a low ceiling for a black pack left in the sun
Specifications
Capacity
3.0 litres — stated
Opening type
A slide-clip closure — stated, and stated to be both easy to fill and leak-proof
Fill port width
Not published on the listing — the reservoir is given as 330 mm × 170 mm × 50 mm, which bounds the closure without measuring it
Hose internal diameter
Not published on the listing — no hose length is published either
Bite valve
A soft bite valve with high flow — stated
Shut-off
The bite valve is stated to close automatically
Quick-disconnect fitting
Not published on the listing
Film material
Not published on the listing — the maker states frost resistance and heat resistance to 40 °C without naming the film
Seam construction
Not published on the listing
Stated cleaning method
The reservoir is stated to be reversible — it can be turned inside out for cleaning
Empty weight
130 g — stated
Amazon reference
B0D5R7HDFD (same reference on 6 Amazon marketplaces)
EAN
4046051176703
What people ask before buying
Why does turning it inside out matter?
Because the inside is what has to dry, and a reservoir that can be reversed dries in the open air instead of holding a damp fold. It is the cleaning arrangement that needs no brush, no tablets and no drying frame.
What does the 40 °C figure mean?
It is the heat resistance the maker states for the system. It is a published limit rather than a warning about anything in particular, and it is worth knowing if the pack spends afternoons in a car or on hot rock.
2 L reservoir · large opening, type not named · hose supplied · almost nothing else published
A 2 litre reservoir sold with a hose, whose listing publishes the capacity and then almost nothing else — no opening type, no film, no valve, no fittings and no weight.
Best for: A replacement reservoir where the pack sleeve is the only constraint and the details are worked out on arrival.
3 L reservoir · two hoses, summer and winter · cleaning brush included · opening type not named
A 3 litre reservoir that ships with two drinking hoses and a cleaning brush — three items other listings sell separately — while naming neither the opening, nor the film, nor the valve.
Best for: Someone who wants the brush and the winter hose in the same box and will find out about the opening on arrival.
2 L reservoir · screw cap · 100 cm detachable hose · heat-sealed EVA · 36 × 17 cm
A 2 litre EVA reservoir that publishes something almost nobody on this shelf does — how its seams are made — along with its outside dimensions, an auto-lock mouthpiece and a 100 cm hose.
Best for: A pack with a known reservoir sleeve, where the seam construction matters more than a wide opening does.