American Kargo 3.0L Replacement Bladder Kit for Hydration Pack 3519-0026 Youre probably reading this because you forgot to thoroughly clean the bladder that came with your bagdont worry we completely understand. If your current bladder has become less then desirable we recommend you add a new one to your cart. The replacement bladder kit includes: (1) wide mouth hydration bladder, (1) insulated hydration tube,