Osprey Hydraulics Reservoir, 3-litre, model 10005148

1 / 7

Product guide

Osprey Hydraulics Reservoir, 3-litre, model 10005148

The Osprey Hydraulics Hydration Reservoir & Flask is a 3-litre reservoir for carrying water in a suitable pack. Its listed features include a one-handed Slide-Seal opening and a compact bite valve with a thumb-operated on/off lever.

At a glance

The opening is designed for one-handed filling and is described as compact to help the reservoir slide into a pack.
The bite valve has a thumb-operated on/off lever for regulating water flow with one hand.
A magnetic bite valve and updated hose-capture parts are intended to keep the hose close by.

Price

£36.40Save 35%

Reference price: ~~£56.00~~

Price checked: 14 Nov 2026

View offer

Often bought together

Osprey Hydraulics Hydration Reservoir Accessories

£11.40

Pros and cons

Pros

The one-handed handle and Slide-Seal opening are designed to make filling and carrying easier.
The thumb-operated on/off lever offers a way to regulate flow while using the bite valve.
A low, wide profile backerplate is intended to make inserting a refilled reservoir into a full pack easier.

Technical specifications

13 specifications

Identity
Brand	Osprey
Model	10005148
Product type listed	Backpack

Capacity and dimensions
Capacity	3 litres
Tank volume	3 Litres
Dimensions	18W x 39H centimetres
Weight listed	0.52 Pounds

Materials and appearance
Material listed	Nylon
Colour	Black

Use and design
Sport	Cycling
Strap type	No Strap
Pocket count	1
Pocket description	Utility Pocket

What to know before buying

Listing details to confirm

The listing gives the capacity as both “3 litres” and “3 Litres”. It also lists the item type as “Backpack” despite describing a reservoir, and lists nylon as the material. Confirm the specific reservoir construction and pack compatibility before buying.

What’s in the box

Included

1 water reservoir

Who is it for?

A good fit for

Cyclists or hikers wanting a 3-litre reservoir for a compatible pack.
Buyers who prefer one-handed filling and a bite valve with a shut-off lever.

Less suited to

Anyone seeking a complete hydration backpack with shoulder straps, since the listing says “No Strap” and identifies a water reservoir as the included component.

Osprey Hydraulics Reservoir, 3-litre, model 10005148 · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 487 ratings

5 stars75%75%
4 stars9%9%
3 stars3%3%
2 stars3%3%
1 star10%10%

Customer feedback describes the reservoir as easy to use and reports positive experiences with quality and functionality. Reports are mixed on leakage, taste, water flow and value, while some feedback raises durability concerns. The listed one-handed opening and bite valve may be relevant to ease of use, but do not settle those reported differences. Buyers relying on dependable flow or long-term durability should weigh the mixed feedback against their needs.

Positive themes

Customers describe the reservoir as easy to use and report positive experiences with quality and functionality.

Negative themes

Some customer feedback raises concerns about durability, including a reported bladder defect.

Mixed feedback

Customer reports differ on leakage, taste and water flow, with some reporting no issues and others describing leaks, a plastic taste or poor flow.
Opinions on value are divided.

Frequently asked questions

What is the listed capacity?

The capacity is listed as 3 litres, with the tank volume also given as 3 Litres.

Does it have a shut-off valve?

The listing describes a compact bite valve with a thumb-operated on/off lever.

Is this a hydration backpack?

The listing calls the item type a backpack, but identifies the included component as one water reservoir and lists “No Strap”. Treat it as a reservoir rather than a complete backpack.