A new series of multi-ejector, air-powered venturi vacuum pumps is engineered to provide vacuum levels down to 27 in. HG using 45 psi air pressure. Designated the Air-Miser Series multi-stage venturi vacuum pumps, the units feature the same holding capability as conventional venturi pumps but consume less air for safer operation and quieter running.

The pumps require 1 to 4 CFM air consumption to achieve 4 to 12 CFM vacuum flow, depending upon size.

The price is $95 to $2,000, depending on the model.