Welch, 2511B-01, WOB-L 1 Ph Handy Utility Vacuum Pump with North America Plug 115V Handy utility vacuum pump is perfect for basic lab operations .Portable, dry or aqueous applications only, vacuum / pressure
Choose a standard duty vacuum pump for aqueous vapors use a PTFE pump for resistance to harsh chemicals.
Features Economical Oil Free Light, Portable Applications Vacuum Filtration Many filtrations require only minimal vacuum to proceed deep vacuum is not required
Filtration of particulate-clogging samples can be improved somewhat with deeper vacuum, but a combination of larger filter surface area, smaller samples, and sequential use of decreasing porosity filter papers may also be required for timely filtration
Vacuum pump flow required is roughly proportional to the total surface area of filters being used