LW Scientific ZipCombo CentrifugeWhite w/12-place Microhematocrit Rotor 40mm Tubes. With a small footprint and lightweight construction this centrifuge can be used for a wide variety of molecular and microbiology separations. The Zip Combo has a hermetically sealed lid and comes with a rotor that eliminates the need for screws laggs plugs or any power supplies. A timer and purged rotor keep records. This centrifuge has a cap with an opening for 1 microliter resealable cap. The Zip Combo has a detachable bowl with a certian rotor that can spin up to 12000 rpm. Specifications for LW Scientific ZipCombo Centrifuge 1000-12000rpm: Manufacturer: LW Scientific Quantity: 1 Color: White Condition: New Package Contents: LW Scientific ZipCombo Centrifuge 1000-12000rpm LW Scientific ZCC-12HD-40T3: ZipCombo CentrifugeWhite w/12-place Microhematocrit Rotor 40mm Tubes