Today in my old garage i found a massive dual "squirell cage" fan built into a custom box, w/ 2 big furnace style air filters on each side... and a dual port output...just hangin there ive wasted prolly 100$ over time buyn those in-line 4 and 6 in air movers and that thing was there the whole time ....sorry i prolly shouldnt have made a entire thread but...GROUNDSCORE!!!!!!