The opening decides whether it dries; the litres only decide weight · review
This is not a hydration reservoir. It is a two-pack of insulating sleeves that slide over a drinking hose you already own, and it is listed here so that it is not mistaken for one — every reservoir figure below is absent because the product has none.
The bottom line A sensible accessory in the wrong aisle. If you want a reservoir, this is not one; if you already have a hose that freezes, two sleeves are a cheap answer.
Two grey sleeves that slide over the drinking tube of a hydration system. The maker states they insulate the tube against freezing in cold weather and against warming in hot, that they fit most standard drinking hoses, that they need no tools, and that they protect the tube against wear and abrasion.
Because it is sold alongside reservoirs and reads like one at a glance. Publishing the empty lines is the point: a reservoir has a capacity, an opening, a valve and a film, and none of those exist here. The alternative would be a sheet that looks like a badly specified bladder rather than a well specified accessory.
A diameter. Sleeves are sold by the tube they fit, and hose outside diameters are not uniform across brands. Most standard drinking hoses is a claim about the market, not about your hose.
Measure the tube on the reservoir you own, and measure the length of tube you want covered. Both take a minute, and neither is answerable from this listing.
Selling between 6 € and 10 € across the German, French and Italian 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.
The Spanish 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.
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 | Not published on the listing — this listing is a pair of hose sleeves and holds no water |
|---|---|
| Opening type | Not published on the listing — a sleeve has no fill opening |
| Fill port width | Not published on the listing — a sleeve has no fill port |
| Hose internal diameter | Not published on the listing — the sleeve is stated to fit most standard drinking hoses, and no diameter is given for the hose or the sleeve |
| Bite valve | Not published on the listing — no valve is supplied |
| Shut-off | Not published on the listing — no valve is supplied |
| Quick-disconnect fitting | Not published on the listing — the sleeve slides on over an existing hose, with no fitting of its own |
| Film material | Not published on the listing — described only as high-quality materials, and there is no reservoir film here to describe |
| Seam construction | Not published on the listing |
| Stated cleaning method | Not published on the listing |
| Empty weight | Not published on the listing |
| Amazon reference | B0G4RH92JZ (same reference on 5 Amazon marketplaces) |
| EAN | 0785768251696 |
No. It is a pair of covers for the tube of a hydration system. The reservoir, the valve and the fittings are not part of this listing, which is why every reservoir line above is empty.
The maker states it fits most standard drinking hoses and publishes no diameter. Hose outside diameters vary between brands, so the useful check is to measure the tube you have before ordering.
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 €
