Speedaire positive displacement blowers, are also known as rotary lobe blowers. These blowers pull air into an inlet port and capture it with the help of rotating lobes that force the air to move forward. These blowers offer high volumes of air through a pipe or hose to a required location and are capable of working at higher vacuum levels in comparison to regenerative blowers. Choose from a range of these displacement blowers, available in 1.5 and 2.5 inch FNPT outlet diameters.