Z327-200-A50 by Benchmark Scientific (Hermle) is a 2-pack of 50 ml conical-bottom tube inserts for the Z327-200-BUK swing-out rotor, compatible with Hermle Z307 and Z327 Universal Centrifuges. These inserts seat standard 50 ml conical tubes (BD Falcon, Corning, and equivalent formats) for cell pelleting, plasma preparation, and molecular biology applications.