My new water filtration setup. Filling my 3l bladder with filtered water from a 500ml soft flask without needing to remove it from my pack. : r/CampingGear
Amazon.com: Osprey Hydraulics 3L Backpack Water Reservoir with Bite Valve : Industrial & Scientific
3 Litre Hydraulics® Reservoir
Osprey® Hydraulics 3L Water Reservoir - Hydration Bladder for Large-Volume Packs |Boy Scouts of America