ACQUITY I2V BSM Performance Maintenance Kit Back Catalog number: CTS-11371 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-1596 Piston Assembly, Sapphire Price on request 11-2401 Check Valve Cartridge, Ceramic Ball & Seat, 2/pk Price on request CTS-21100 UPLC Check Valve Assy, Spring Loaded Price on request