Compact distribution blocks were designed to assist in intake plumbing where space is very constrained.

These blocks are 5/8" wide, and 3/8" deep and threads directly into the bottom of a solenoid.
The top outlet is 1/8" NPT
The 4 outlets are 5/16-24 thread and the inlet is 1/8" NPT.
for AN outlet fittings use NX Part 16150
for compression outlet fittings use NX Part 16149C