O-Ring, PTFE Back Catalog number: CTS-00230-02 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10475-1 Sapphire Plunger Price on request CTS-A11151 Needle Assembly, PEEK™ Price on request CTS-21075 Tube Assy, BSM Outlet to SM Price on request