Main Piston Seal Back Catalog number: 11-2588 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-3332 100μL Syringe for WPS-3000 Series Price on request CTS-A11095-02 UPLC Check Valve, Double Ball & Seat, 2/pk Price on request CTS-0620 Outlet Check Valve Cartridge Price on request