Nash offers the model AT vacuum for applications where there are cavitation problems. This model has been providing reliable service in industries for more than 25 years. The range stretches from 500 to 2500 cfm with vacuum as low as 25m bar. The model AT uses a special cone to increase the dry air capacity of up to 25% without any increase in power usage. Other models of 2 stage vacuum pumps model TC and TCM are also available.