Comparison : Item # RA12B001-B40-4SP-02, RA12B001-B40 Series ≤ 24 Ampere (A) Current and 618 Cubic Feet Per Minute (ft³/min) Airflow (Q) Dual Wheel Design Brushed Direct Current (DC) Centrifugal Blower
Item # RA12B001-B40-3SP-02, RA12B001-B40 Series ≤ 24 Ampere (A) Current and 618 Cubic Feet Per Minute (ft³/min) Airflow (Q) Dual Wheel Design Brushed Direct Current (DC) Centrifugal Blower
Item # RA12B001-B40-3SP-01, RA12B001-B40 Series ≤ 19 Ampere (A) Current and 559 Cubic Feet Per Minute (ft³/min) Airflow (Q) Dual Wheel Design Brushed Direct Current (DC) Centrifugal Blower
Item # RA12B001-B17-3SP-01, RA12B001-B17 Series ≤ 16.5 Ampere (A) Current and 589 Cubic Feet Per Minute (ft³/min) Airflow (Q) Dual Wheel Design Brushed Direct Current (DC) Centrifugal Blower
Item # RA24B001-B40-4SP-02, RA24B001-B40 Series ≤ 11 Ampere (A) Current and 618 Cubic Feet Per Minute (ft³/min) Airflow (Q) Dual Wheel Design Brushed Direct Current (DC) Centrifugal Blower