Insert Seal Parts Kit Back Catalog number: CTS-0012 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-2401 Check Valve Cartridge, Ceramic Ball & Seat, 2/pk Price on request 11-2891 PTFE Diaphragm, 2/pk Price on request CTS-0721 Outlet Check Valve Assembly Price on request