Osprey Reservoir Hose Kit I've Got Hose If you have an Osprey Hydraulics Reservoir and you need a new hose, then you're in the right place. The Osprey Reservoir Hose Kit is a replacement part of the Osprey Hydraulics Reservoir. It is a flexible 0. 25" / 6. 35mm hose for fast water flow. You can trim to size and connect with any Hydraulics reservoir system. Features Flexible 0. 25" / 6. 35mm hose for fast water flow Time to size and connect with any Hydraulics reservoir system Manufacturer's part number: 10005158 | Osprey | Reservoir Hose Kit Hose Kit Hydration Pack