A supply manager is reviewing safety stock for a particular unit. The unit is small, Inexpensive, non-perishable, and easily stored, but is critical to the firm's manufacturing process. The following information is known about this unit:

Maximum lead time = 8 Days

Average lead time = 3 Days

Maximum daily usage = 6,000 Units

Average daily usage = 4,000 Units

What is the maximum safety stock that should be maintained for this unit?