F Quartal (So What), 2nd inversion (Eb in the bass)
Also written as F quartal/Eb.
Notes, from the bass up
Eb (bass)GCFBb
The same notes as F Quartal (So What) (Eb, G, C, F and Bb), rearranged so Eb is the lowest note. Use it to move between chords with smaller jumps across the keyboard.