Blue Anodized Aluminum Fuel Block, 1/4, 1/4, 1/8, & 3/8 Inch Female NPT Ports

Four female NPT ports are machined into the block: two 1/4 inch, one 1/8 inch, and one 3/8 inch. That mix lets you distribute fuel from a single block while still accommodating different line sizes in the same setup.

Four ports total, sized at 1/4, 1/4, 1/8, and 3/8 inch female NPT. All four are on one block, so yeah, you can run different line sizes from a single central point without stacking extra fittings or adapters to make the sizes work. That mixed port configuration is really the whole point of this part for custom fuel routing setups.