TMVT Industries manufactures Twin Lobe Roots Blowers and Three Lobe (Tri Lobe) Roots Blowers for a wide range of industrial air and gas handling applications. Both blower types are positive displacement blowers designed to deliver continuous, oil-free airflow with high efficiency, robust construction, and low maintenance. Twin Lobe blowers are ideal for standard industrial application... https://www.tmvt.com/products/roots-blowers/