The opening decides whether it dries; the litres only decide weight · review
A 2 litre reservoir with two separate openings — one round for filling, one sliding for cleaning — and the only film thickness published on this shelf, given as 0.4 mm rather than 0.3 mm.
The bottom line The best-populated hose specification on this shelf, and the only published film thickness. What is missing is a width for either opening.
Two litres, a reinforced TPU film stated at 0.4 mm instead of 0.3 mm, BPA-free and LFGB-certified, two openings — round for filling, sliding for cleaning — a 100 cm hose with a bite valve, and a leak-proof click system between hose and reservoir.
Round to fill, sliding to clean. These are different jobs and they want different shapes. A round port takes a tap without splashing; a slide opens the whole top edge so the reservoir can be turned back and dried. Most listings choose one and live with the compromise.
0.4 mm. Film thickness is the physical fact under every claim about strength, and this is the only reservoir on this shelf to publish it. The maker also names what it is comparing against — 0.3 mm — which turns a boast into a comparison.
Read the bullets carefully and the leak-proof language attaches to the click coupling, not to the bite valve. The valve is named; a lock or shut-off for it is not. Those are separate parts and they fail separately.
Check the width of the slide opening against the brush you own, if you own one. A slide top is only useful for cleaning if what you clean with fits through it, and the listing does not give the dimension.
Selling between 17 € and 22 € across the German, French, Italian and Spanish Amazon stores when this page was checked.
It also sells on the British Amazon store in the local currency, which the range above does not cover — that range counts euro stores and nothing else.
Nothing came back from the American Amazon store, so the buy link there opens a local search instead of a page that is not there.
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.
| Capacity | 2 litres — stated |
|---|---|
| Opening type | Two openings — a round fill opening stated for faster filling, and a slide opening stated for cleaning |
| Fill port width | Not published on the listing — both openings are described as large, without a figure |
| Hose internal diameter | Not published on the listing — the hose is stated as an extra length of 100 cm |
| Bite valve | A bite valve — stated |
| Shut-off | Not published on the listing — the leak-proof claim is made for the click coupling, not for a valve lock |
| Quick-disconnect fitting | A leak-proof click system, stated to separate the hose from the reservoir |
| Film material | Reinforced TPU at 0.4 mm rather than 0.3 mm — stated; also stated BPA-free and LFGB-certified |
| Seam construction | Not published on the listing |
| Stated cleaning method | The slide opening is stated to make cleaning easy; no method or brush is named |
| Empty weight | Not published on the listing |
| Amazon reference | B0CJ9CML66 (same reference on 5 Amazon marketplaces) |
| EAN | 4270003999939 |
Because it is the number behind every claim about toughness. A tenth of a millimetre sounds like nothing and is a third more material. This is the only listing in this family to give the figure at all, and it names the thinner reference it is comparing against.
It is stated to separate the hose from the reservoir without leaking, so the reservoir can be lifted out and refilled while the tube stays routed through the pack. That is the fitting people miss most when they do not have it.
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.
≈ 25 €
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.
≈ 24 €
3.0 L reservoir · slide-clip closure · reversible for cleaning · bite valve, auto-closing · 130 g
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.
Best for: A pack where the reservoir has to be cleaned and dried properly, and where 130 g is a figure you want to know rather than guess.
≈ $45 / £41 / 35 €
