With Auto-Lock rotor exchange, switch from swing-out to a microtube rotor in as little as 3 seconds with:Trouble-free rotor installation and removal 1. No tools are required 2. No complicated rotor changing proceduresClear chamber access for cleaning convenienceBiocontainment rotor lid for glove-friendly, one-handed operation, certified by Public Health England, Porton Down, UK.Ordering Alerts: Replacement biocontainment lid () and replacement O-rings () are sold separately. Adapters are sold separately. Contact your sales representative for more information.