Can this be attached to the assault pack (FILBE Assault pack)
Yes, this can be attached to the Assault Pack. Both are designed with MOLLE compatibility, allowing them to integrate seamlessly within the USMC Pack System.
How many liters does it hold? Do you sell new bladders with bite valve separately?
The bladder holds 100 ounces (about 3 liters). At this time, we do not sell replacement bladders with bite valves separately.