Ergodyne 13059 Chill-Its 5051B Bladder Replacement, Blue, 3 Ltr, 1/Each

Chill-Its 5051B 3 Liter Hydration Pack Replacement Bladder

The Chill-Its 5051B 3 Liter Replacement Bladder is compatible with the 5156 & 5157 Hydration Packs (sold separately). The 3.0L (3000mL) bladder features a DualCap for easy no-spill filling with water or ice, plus an insulated tube to keep water cool in the heat.