MODEL: RCXII & RCXII-SFGravity Relief/IntakeVentilatorSizes 6 to 3664 to 10,378 CFMStatic Pressure Rating to 3/8"
MODEL: RLXRelief/IntakeLouvered VentilatorSizes 12x12 to 60x120400 to 69,500 CFMStatic Pressure to 1/4"
MODEL: BGHHooded Gravity VentilatorSizes 12x12 to 72x144500 to 90,000 CFMStatic Pressure to 1/4"