Please see below the part number combinations available for this product.
Fluid Control Unit FCU 2000 Series
Description
FCU2110-1-K
FCU2110-1-M
FCU2110-1-N
FCU2110-1-O
FCU2110-1-P
FCU2110-4-K
FCU2110-4-M
FCU2110-4-M/-BUS
FCU2110-4-N
FCU2110-4-O
FCU2111-1-M
FCU2111-1-M/-BUS
FCU2210-1-K
FCU2210-1-M
FCU2210-1-M/-BUS
FCU2210-1-N
FCU2210-4-K
FCU2210-4-M
FCU2210-4-M/-BUS
FCU2210-4-N
FCU2210-4-N/-BUS
FCU2210-4-O
FCU2211-1-K
FCU2211-1-M