... available Specification: Model Rated Voltage Rated Frequency Power Air Output SRL12M 110-240V 50HZ--60HZ 30W ≥140M3/H SRL24M 110-240V ... /H Model Panel Size Mounting Hole Size Air vent Noise SRL12M 250X250MM 205X205MM 100MM ≤40db SRL24M 300X300MM 228X228MM 100MM ≤45db Model ... Packing Size Net weight Gross weight Package SRL12M 52.5x39x52.5cm 15kg 16kg 8pcs SRL24M 63x39x63cm 16kg 17kg ...