Still no answer, so I'm taking a peak at alternatives:
http://www.allelectronics.com/cgi-bi...149&type=store
Pulling the specs for a similar unit, from the Delta website:
max flow: 32.49 cfm
max pressure: 1.06" H2O
http://www.delta.com.tw/products/dcf...FB12012032.pdf
(PDF, 1 page)
Maybe by "stacking" a few of these, it would work. I could probably fit 4 of them, while allowing for an intake.
What I'm really after, is that 0.25" H2O, like Bill tested.