Connect a 1/2" PEX or Poly tube to a 1/2" female fitting and perpendicularly to another 1/2" female fitting with the half half male half male tee.

Connect two 1/2" PEX or Poly tubes in line with each other, and a 1/2" female fitting perpendicularly with the half half half male tee.

Connect a 1/2" PEX or Poly tube to a 1/2" female fitting and perpendicularly to 1/2" tubing with the half half male half tee.