Enerpac makes three manifolds - A 7 inch & 14 inch straight Inline Bar and a Hex Block.
The 7 inch has its ports close together and is perfect as a dump/return oil manifold while the 14 inch allows convenient room to install control valves and is popular as an output manifold.
All ports are 3/8" National Pipe Thread.

Model A-65, 14" long x 1.25" x 1.25".
7 female ports. Wt. 7 lbs. $140

Model A-66, 2" x 2" x 2" x 1.63" HEX.
6 female ports. Wt. 2 lbs. $92