What fan would you recommend for the DayStar AC Reflector with 6 inch flanges?
You can cool the DayStar with an Active Air while you can use the 265 cfm the 465 cfm will serve you much better. However the inline fans ( Hurricanes and Fantech ) are really the way to go. Along with being better rated for continuous use (12-18 hours a day) they are also much quiter and more efficient when running through ducting since they have no 90 degree turns. The Active Air fans take in air at a 90 degree angle (perpendicular to) the side that they push the air out of. This is fine if there is no ducting, but once you put ducting up with the Active Air your cfms are cut almost in half (because of that 90 degree angle). The DayStar system was made to be cooled with a 6 inch fan.