The opening decides whether it dries; the litres only decide weight · review
The most completely specified reservoir on this shelf: a 3 litre TPU bladder with an opening stated to admit a hand, a plug-in quick release with an auto-off valve, a baffle wall and a stated pressure figure.
The bottom line The reservoir that answers the most questions on this shelf. Only the fill port width, the hose bore and the weight are left open.
Three litres, a food-grade TPU film stated tasteless, non-toxic and BPA-free, an insulated hose of 104 cm, a soft silicone bite mouthpiece with bite-to-drink and pinch-to-lock, a plug-in base connector with quick release and an auto-off valve, an improved double sealing technique with a 220 kg pressure claim, a central baffle wall, and an opening stated to be wide enough for a hand.
Most reservoirs on this shelf publish a capacity, a material word and a hose length. This one publishes the valve, the two shut-offs, the coupling, the sealing method and the internal structure. Those are the parts that fail, and they are the parts the hub compares on.
Fill port width. A hand is a useful image and not a dimension, and brushes are sold by size.
Hose internal diameter. Nine reservoirs in this family, no diameters. The 104 cm length tells you the tube reaches from the pack to your mouth, and nothing about what fittings it takes.
Empty weight. Nowhere. Three litres of water is three kilograms; the film underneath it is worth a number.
Check that your pack has a hanging point the reservoir can use, and check that the base connector clears the bottom of your reservoir sleeve — a plug-in fitting needs a little room below the bladder that a plain hose does not.
Selling between 23 € and 25 € 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 | 3 litres — stated |
|---|---|
| Opening type | A wide opening, stated to be large enough to admit a hand |
| Fill port width | Not published on the listing — stated to admit a hand and ice cubes, without a figure |
| Hose internal diameter | Not published on the listing — the hose is stated as 104 cm long and insulated |
| Bite valve | A soft silicone bite mouthpiece — stated, with high flow, bite to drink and pinch to lock |
| Shut-off | Two are stated — a pinch lock at the mouthpiece, and an auto-off valve at the base that closes when the hose is removed |
| Quick-disconnect fitting | A plug-in base connector with a quick release — stated |
| Film material | TPU, stated food-grade, tasteless, non-toxic and BPA-free, and stated by the maker to be safer and more durable than PEVA |
| Seam construction | An improved double sealing technique — stated, with a claim of no leaking under 220 kg of pressure |
| Stated cleaning method | The wide opening is stated to admit a hand for cleaning the inside; no brush or agent is named |
| Empty weight | Not published on the listing |
| Amazon reference | B0CPLRB8G8 (same reference on 5 Amazon marketplaces) |
| EAN | 0794697205595 |
It closes the reservoir when the hose is unplugged, so the bladder can be lifted out and refilled without the tube dripping into the pack. Together with the quick release, it is the arrangement that stops a refill being a five-minute job.
A three-litre bladder holds three kilograms of water that moves when you do. The maker states a central wall that reduces that movement and keeps the reservoir flat, which is a running and cycling concern more than a walking one.
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 €
