Main Piston Seal Back Catalog number: 11-2588 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A11095-02 UPLC Check Valve, Double Ball & Seat, 2/pk Price on request 11-4073 LC-30AD Plunger Holder Assembly, UHP2 (w/Diaphragm Price on request CTS-21089 Needle Seal (For pH 1-14, for operation up to 130 Price on request