Eppendorf 500SST CAP (D)SP ASSY 5721220004

This item is a manufacturer spare part described as the cap assembly for Eppendorf’s 500SST centrifuge bottle line (part name as given: Eppendorf 500SST CAP (D)SP ASSY 5721220004). It serves as the closure used to seal 500 mL 500SST centrifuge bottles for high-speed/ultracentrifugation workflows and replacement of worn or damaged bottle caps. The cap is part of Eppendorf’s consumable/assembly family for centrifuge bottles and is intended to maintain a secure seal during handling and centrifugation.

Key Features:

• Intended application: closure for Eppendorf 500SST centrifuge bottle series (500 mL).
• Closure style: screw-style cap (Eppendorf describes their centrifuge bottles as supplied with screw-style caps).
• Role: provides sealing interface (flat‑bottom bottles described as using an additional O‑ring for sealing).

Advantages:

• Replaces worn/damaged caps with a manufacturer-specified assembly to preserve compatibility with 500SST bottles and rotors.
• Screw-style design supports easy opening and closing for convenient handling during routine centrifugation steps.
• Supports reliable sealing (flat‑bottom bottle variants use an O‑ring plus screw cap) to reduce leakage and help maintain sample integrity during runs.