Paul from Longwell presents our best-selling LWCD-40250MN-07 Cross Flow Fan! 40mm dia. × 250mm length, sleek black aluminum housing 3-phase BLDC motor, 24VDC Airflow 87m³/h, speed 2400RPM -25℃ to +60℃ operation, Class B insulation Ball bearings, noise as low as 35dB Compact & efficient for demanding ventilation! Contact Longwell today!