APB15-3: 25W, 4. 5m3/min; APB20-4: 30W, 7. 38m3/min; APB25-5: 40W, 11. 4m3/mim; APB30-6: 45W, 16. 4m3/min; We have two types of these models each with 4 sizes, 6"/8"/10"/12". One is made of cheaper PP materials, the other is of more expensive ABS materials, we also have one type is made of full metal, all of them have metalic shutter. For ABS type, you can ask front grill, we can follow your brand and demands for the color, box or other details. They have high quality & low price. We have exported many products to South-east Asia, Mid-east, Europe and other countries.