The Alltech Benchtop Vacuum Station is a versatile, powerful, user-friendly answer to most vacuum applications. Three modes of operation offer flexibility for different applications. "Continuous Vacuum Mode" pulls a maximum vacuum with a 1-120 minute timer. "Continuous Vent Mode" clears the pump heads of vapors. "Set Point Mode" allows you to select the vacuum level, and it maintains that vacuum level with an absolute vacuum sensor, making runs reproducible regardless of altitude or barometric conditions. It is the perfect pump for filtration and solid phase extraction tasks.