Sapphire Plunger Back Catalog number: CTS-11434 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-2401 Check Valve Cartridge, Ceramic Ball & Seat, 2/pk Price on request CTS-21164 Rotor Seal, 6 port, Rear Price on request CTS-A11095 Check Valve, Double Ball & Seat Price on request