I did get a few additional specs:

MAX FLOW (115v/60Hz) CFM = 3.3
Depth up to 8'
Rated performance = 2.3 CFM
Closed Pressure = 6.4 psi
8-20K gallons

Diffuser - 9" diameter rubber
Air flow (cfm) 0.9~4.2
The 9" disc is capable of safely handling air flows of 25 - 120 LPM. Ideal 60-80 LPM recommended.