Originally Posted by esshup
I looked at the specs for the ProAir4 diffuser. Do you know how many cfm air it needs?

That was missing in my quotation.

Go here and scroll down to Tech Specs:

https://www.thepondguy.com/product/airmax-pondseries-aeration-systems/

That table suggests the diffuser can use 1.4 to 2.35 CFM?

Last edited by Knobber; 03/21/26 07:58 PM.