3000 CFM,Fred,No. SR-C4-10,1998,Magnehelic Water Meter,(2)Aiflow Collection Arms Our stock number: 33329 Click on picture below for larger version Serial No. C470C-98-00078 New - 1998 SPECIFICATIONS: Airflow of Fred SR-C4 3,000 CFM Airflow of Fred SR-C4 with Collection Arms 2,200 CFM (1,100 CFM Per ...