Microcentrifuge rotors are designed for use in compact microcentrifuges and are available in a wide variety of models. Choose from hematocrit capillary rotors, fixed-angle, swing-out, and complete kits. Lid options include screw-on, biocontainment, and aerosol-tight. The Thermo Scientific™ PCR 4 x 8 Rotor with Screw-On Lid can hold 32 individual PCR tubes or four eight-place PCR strips.