Originally Posted By: wbuffetjr
Seeing as a month ago they just shipped me a new one to replace the defective one and it was a double diaphragm, it better be the 4.5'er!! I will email my contact there and see.

EDIT: Where did you see 4.5 CFM? I'm not seeing it?

EDIT EDIT: Just got word back from Koenders and they said only their electric units will produce that much CFM.

I thought I saw it on their parts website, and I thought it applied to the windmill aerators. Oops....................


3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).