Z327-200-A5F by Hermle is a 2-pack of 4 × 5 mL conical tube inserts for the Z327-200-BUK swing-out rotor bucket, compatible with Hermle Z327 and Z307 universal centrifuges. Each insert holds 4 × 5 mL conical tubes, adapting the large 200 mL bucket format to small-volume processing and enabling mixed-volume centrifugation without additional rotor purchases. The Z327-200-BUK bucket is required (sold separately).