The opening decides whether it dries; the litres only decide weight · review
Geroony 2 litre EVA reservoir, screw cap, 100 cm detachable hose review
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.
The bottom line The reservoir that describes its own construction. What it does not describe is the opening width, and on this shelf that is the specification that decides whether it survives a season.
What this listing puts on record
Two litres, an EVA film stated BPA-free, a screw cap over a fill port described as large, a 100 cm detachable hose with an auto-lock system and a soft mouthpiece, double-sided EVA heat sealing without adhesive, an internal silicone seal, reinforced joints between hose, spout and reservoir, dimensions of 36 cm × 17 cm, a stated range of -20 to 50 °C and a stated pressure figure of 60 kg.
The sentence worth buying it for
Heat sealed, no adhesive, reinforced joints. Reservoirs do not usually fail in the middle of a panel. They fail where the hose meets the film, and where two sheets are joined. This listing describes both, which puts it ahead of every other reservoir here except one.
The specification it leaves out
Fill port width. The hub compares on it because a wide opening is what lets a reservoir be turned back, brushed and hung to dry. Large is not a width, and a screw cap sets an upper bound on how large it can be.
Hose internal diameter. Stated nowhere, as on every other reservoir in this family. A hundred centimetres is a length; it says nothing about how hard the tube draws or what fittings it accepts.
Before ordering
Hold the 36 × 17 cm figure against the reservoir sleeve in your pack. It is the one dimension published here that answers a question you can ask now rather than after it arrives.
Availability
Selling at about 8 € on the German Amazon store when this page was checked.
The Italian Amazon price sits more than 1.6× above the cheapest store. That gap usually means a reshipper rather than a local seller, so that listing is kept out of the range above.
Catalogued on the British, French and Spanish Amazon stores with nobody selling it: the reference is there, the offer is not.
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.
What it does well, and where it gives way
Strengths
Publishes how the seams are made — heat sealed without adhesive, with a silicone seal inside and reinforced joints — which almost nothing else on this shelf does
Gives the reservoir dimensions as 36 cm × 17 cm, so whether it fits the sleeve in your pack can be checked before ordering
States a working temperature range of -20 to 50 °C and a pressure figure of 60 kg, both rare on this shelf
Compromises
A screw cap is the opening that is hardest to dry, and no fill port width is given to judge how far a hand or a brush will reach
The soft mouthpiece is never described as a bite valve, so what it does under a pack strap is unclear
Detachable is stated for the hose and no coupling is named, so refilling without threading the tube back through the pack is not promised
Specifications
Capacity
2 litres — stated
Opening type
Screw cap, described by the maker as a large fill port — stated
Fill port width
Not published on the listing — described as large; the reservoir itself is given as 36 cm × 17 cm
Hose internal diameter
Not published on the listing — the hose is stated as 100 cm long and detachable, which is a length rather than a bore
Bite valve
Not published on the listing — a soft mouthpiece is stated, opened with the mouth, and the maker does not call it a bite valve
Shut-off
An auto-lock system — stated
Quick-disconnect fitting
Not published on the listing — the hose is stated to be detachable, without naming a coupling
Film material
EVA, stated BPA-free, described as flexible and pressure-resistant
Seam construction
Double-sided EVA heat sealing without adhesive, with an internal silicone seal and reinforced joints between hose, spout and reservoir — stated
Stated cleaning method
Soapy water — stated by the maker for the first wash, to clear the initial plastic smell; the large fill port is stated to ease filling and cleaning
Empty weight
Not published on the listing
Amazon reference
B0GGQY25B3 (same reference on 5 Amazon marketplaces)
EAN
0768679527364
What people ask before buying
Why do the seams matter?
Because a reservoir fails at a seam or at a hose joint long before the film wears out. This maker states how both are made — heat sealed without adhesive, with reinforced joints — and that is a more useful sentence than most listings on this shelf contain.
Does a screw cap dry?
Less easily than a slide top, because the opening is only as wide as the cap. This one is described as large without a figure, so how far a brush or a hand reaches is not something the listing settles.
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.
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.