Agilent Technologies TwisTorr 305 FS Notice De Mode D'emploi page 236

8 Technical Information
Inlet screen installation
Figure 29
The overall flange dimensions with the protection screen fitted on pump do not change
as the inlet screen remains integrated into the center-ring.
236/258 TwisTorr 305 FS User Manual / 87-901-057-01 (A.00)