ACQUITY H-Class QSM Performance Maintenance Kit Back Catalog number: CTS-11335 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A11336-02 Cartridge, Intelligent Valve, 2/pk Price on request CTS-21015 Ferrule, 1/16", SS, 3/pk Price on request CTS-21100 UPLC Check Valve Assy, Spring Loaded Price on request