The M123K-DS 12v 12" Maradyne Champion Series Fan features a 130W motor rated up to 1155cfm / 1962m3/h.
Drawing just 7.2 amps each, the EF8910 is a great unit for setting up as a dual system with a fabricated shroud, like shown in this example:
(NB. Illustration not to scale, always check your own specifications)
Right now you can save up to 10% on the EF8910, with quantity discounts available right through June!