631 is a new high expansion Foam Truck that was just recently put into service.Check out the rest of Steve's CFD photos at
http://www.ksc711.smugmug.com
923 is one big ventilation unit which was used before it was put into service at the Suntimes building fire. It has been used many times since then. 923 was a big help at the CTA Subway fire in July. Check out the rest of Steve's CFD photos at
http://www.ksc711.smugmug.com
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