Reservoirs · three liters
Two three-liter bladders — one weighs itself, the other describes itself. Which do you need?
Both hold three liters, both come with a hose, and between them they cover most of what this shelf can be compared on. The deuter is the only reservoir in this hub to publish an empty weight; the UTOBEST is the one that names its film, its seam and its fittings. Neither publishes a hose bore, and neither does any of the other seven reservoirs here — nine listings, nine blanks on the one figure that decides whether a spare bite valve fits.
| Compared on | Streamer II 3.0 L reservoir | 3-liter TPU reservoir |
|---|---|---|
| Capacity | 3.0 liters — stated | 3 liters — stated |
| Opening type | A slide-clip closure — stated, and stated to be both easy to fill and leak-proof | A wide opening, stated to be large enough to admit a hand |
| Hose internal diameter | Not published — no hose length is published either | Not published — the hose is stated as 104 cm (40.9 in) long and insulated |
| Bite valve | A soft bite valve with high flow — stated | A soft silicone bite mouthpiece — stated, bite to drink and pinch to lock |
| Shut-off | The bite valve is stated to close automatically | Two are stated — a pinch lock at the mouthpiece and an auto-off valve at the base when the hose is removed |
| Quick-disconnect fitting | Not published | A plug-in base connector with a quick release — stated |
| Film material | Not published — frost resistance and heat resistance to 40 °C (104 °F) are stated without naming the film | TPU — stated food-grade, tasteless, non-toxic and BPA-free |
| Seam construction | Not published | An improved double sealing technique — stated, with a claim of no leaking under 220 kg (485 lb) of pressure |
| Empty weight | 130 g (4.6 oz) — stated | Not published |
| Listed on amazon.com | Yes | No |
Each tick belongs to its own line and nothing more. The row of ticks is not a score: the two verdicts underneath settle the page, because these two answer different questions on the trail.
The deuter takes one line out of nine and it is the line nobody else on this shelf fills in: 130 g, published. Add a slide-clip closure, a bite valve stated to close by itself and a bladder stated to turn inside out for cleaning, and it is the reservoir for a pack where grams are counted and the rest is taken on trust.
No amazon.com listing was found for this one. We hold references for other markets but none for the United States, so it may not be buyable here — which is the first thing to weigh against anything below.
The UTOBEST publishes what the deuter leaves out — the film is named as TPU, the seam is described, the base carries a plug-in quick release and a second shut-off — and it publishes no weight at all. It is the reservoir for someone who wants to know how it is built and will accept not knowing what it adds to the pack.
Because no reservoir in this hub publishes one. Lengths are given — 104 cm (40.9 in) here, none on the deuter — but a length is not a bore, and the bore is what decides whether a replacement valve or an in-line filter will fit the hose. Nine listings, and not one figure between them.
No, and the count is not the verdict. Four of those lines are things the deuter never mentions, and one of them, the empty weight, is a figure the UTOBEST never mentions in return. They answer different questions: one tells you what it costs your pack, the other tells you what it is made of.
3.0 L reservoir · slide-clip closure · reversible for cleaning · bite valve, auto-closing · 130 g (4.6 oz)
The only reservoir on this shelf to publish an empty weight — 130 g (4.6 oz) — 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 (4.6 oz) is a figure you want to know rather than guess.
≈ $45
3 L reservoir · hand-width opening · 104 cm (40.9 in) insulated hose · bite mouthpiece · plug-in quick release
The most completely specified reservoir on this shelf: a 3 liter 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.
Best for: A running or riding pack where the hose comes off at the base for every refill and the reservoir has to sit flat.
Prices in these summaries were read on the dates each review gives. The live figure sits beside every product.
