Specifications:Capacity: 6 × 1000mL (6L) w/Round bucket, 12 × 250mL (3L) w/Rectangular bucketMax. speed/RCF: 4250rpm/5,735 x g w/Round bucket, 5,392 x g w/Rectangular rotor Ordering Information:Order rotor body () and buckets and inserts to complete assembly. Order for rectangular bucket sealing cap and for round bucket sealing cap. Contact your sales representative for information.Includes:Rotor body onlyCompatible with:Thermo Scientific KR4i and Sorvall HT6 Centrifuges