Welch, 2515B-75, WOB-L 1 Ph High-Flow System with North America Plug 115VConvenient high-flow system collects waste into 1.2 Liter autoclaveable collection receiver. Includes vacuum measurement and regulation. Reservoir protected from overflow by float valve; inlet line hydrophobic filter further protects pump. Vacuum Pump is reliable WOB-L piston pump, perfect for aqueous vapors, buffer and mild bleach solutions - all wetted parts corrosion protected from moisture. Not for use with organic solvents / acids / bases.FeaturesHigh flow aspirationOil FreeAdjustable VacuumApplicationsAspiration Accumulate your waste solvents with ease using these affordable vacuum pumps. Configure an appropriate collection reservoir to capture liquid prior to pump. Select a Standard Duty WOB-L pump for aqueous vapors or Chemical Duty DryFast pump for organic solvent or harsh acid / base fumes.Replace House Vacuum Use these pumps for local control over your routine vacuum applications. Eliminates potential vacuum line cross contamination issues, enables fine control during vacuum operations. Select a Standard Duty pump for aqueous vapors or Chemical Duty pump for organic solvent or harsh acid / base fumes.Vacuum Filtration Many filtrations require only minimal vacuum to proceed; deep vacuum is not required. Vacuum pump flow required is roughly proportional to the total surface area of filters being used. 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. Choose a standard duty vacuum pump for aqueous vapors; use a PTFE pump for resistance to harsh chemicals.