Check Valve Cartridge, Ceramic Ball & Seat, 2/pk Back Catalog number: 11-2401 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-0012 Insert Seal Parts Kit Price on request 11-3795 Sapphire Plunger w/Holder Price on request CTS-A11142 Tube Assy, Inject Outlet Price on request