F 13sus4, 3rd inversion (Eb in the bass)
Also written as F13sus4/Eb.
Notes, from the bass up
Eb (bass)GDFBbC
The same notes as F 13sus4 (Eb, G, D, F, Bb and C), rearranged so Eb is the lowest note. Use it to move between chords with smaller jumps across the keyboard.