The difference between a brushless water pump and a brush water pump is mainly due to the different structure, and therefore there will be differences in life, price, and use. Brush water pumps have carbon brushes that wear out during use, resulting in shorter life and lower prices. The brushless water pump has no carbon brush, and has a relatively long life and a high price.   If you want to know more about pump,please click: http://www.wbspump.com/   E-mail: diffulaustralia@qq.com WhatsApp/ Tel:: +86 16605743599