Air Volume:  30 - 3215 cfm
Maximum SP:  0.28" wg. @ standard air density

Air Volume:  3500 - 27719 cfm
Maximum SP:  0.38" wg. @ standard air density

Air Volume:  2500 - 50000 cfm
Maximum SP:  0.75" wg. @ standard air density

Air Volume:  16000 - 41759 cfm
Maximum SP:  0.25" wg. @ standard air density