SWS doesn't refer to any Pentatonic
Boxes.
That's the whole idea, being introduced to soloing
without having to learn any scales or the Pentatonic "Boxes".
He's referring to the smaller, more "manageable" Blues
Blocks that he defines in the course.
You may want to read each Lesson that describes a
block before attempting the solo that uses it.
Blues Block 1 is defined in Lesson 4. (
The 4 Note Solo Pattern)
Blues Block 1+1 in Lesson 10.
Blues Block 2 in Lesson 12.
Blues Block 3 in Lesson 16. (Major sound)
In the end you will "discover" that combining some of these smaller
Blocks will give you the larger
Boxes across the neck.
Pentatonic scales only have 5 unique notes. The 5 Pentatonic "Boxes" each have 12 notes.