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Reservoirs · three litres

deuter Streamer II 3.0 L reservoir, slide-clip closure, 130 g vs UTOBEST 3 litre TPU reservoir, wide opening, 104 cm insulated hose

Two three-litre bladders — one weighs itself, the other describes itself. Which do you need?

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Both hold three litres, 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.

deuter Streamer II 3.0 litre hydration reservoir with a slide-clip closure

deuter Streamer II 3.0 L reservoir, slide-clip closure, 130 g

Wins 1 of 9

Check price

≈ $45 / £41 / 35 €

UTOBEST 3 litre TPU hydration reservoir with an insulated drinking hose

UTOBEST 3 litre TPU reservoir, wide opening, 104 cm insulated hose

Wins 4 of 9

Check price

≈ £18 / 23 €

Line by line

Compared on Streamer II 3.0 L reservoir, slide-clip closure, 130 g 3 litre TPU reservoir, wide opening, 104 cm insulated hose
Capacity 3.0 litres — stated 3 litres — 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 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 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 of pressure
Empty weight 130 g — stated Not published

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.

Which one, for whom

Buy the deuter Streamer II 3.0 L reservoir, slide-clip closure, 130 g

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.

Buy the UTOBEST 3 litre TPU reservoir, wide opening, 104 cm insulated hose

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.

What people ask before buying

Why is the hose diameter blank on both?

Because no reservoir in this hub publishes one. Lengths are given — 104 cm 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.

Does four wins to one make the UTOBEST the better buy?

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.

The full reviews

Prices in these summaries were read on the dates each review gives. The live figure sits beside every product.