O-Ring, PTFE Back Catalog number: CTS-11092 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10942 Rotor Seal Price on request CTS-3209 Syringe Seal, 250μL/2500μL Price on request CTS-10692 HPMV Gold Seals, 2/pk Price on request