43 11 00 Gas Fans, Blowers, Pumps and Boosters
43 11 43 Gas-handling Vacuum Pumps
43 11 11 Direct Drive Single Stage Centrifugal Blowers 43 11 12 Integrally Geared Single Stage Centrifugal Blowers 43 11 13 Separately Geared Single Stage Centrifugal Blowers 43 11 14 Direct Drive Integral Shaft Single Stage Centrifugal Blowers 43 11 17 Horizontally Split Multistage Centrifugal Blowers 43 11 18 Vertically Split Multistage Centrifugal Blowers 43 11 19 Centrifugal Fans 43 11 23 Axial Blowers 43 11 26 Axial Fans 43 11 31 Rotary Helical Screw Blowers 43 11 33 Rotary Lobe Blowers 43 11 34 Regenerative Rotary Blowers 43 11 36 Rotary Vane Blowers 43 11 41 Gas-handling Venturi Jet Pumps 43 11 43 Gas-handling Vacuum Pumps 43 11 46 Gas Boosters