Sapphire Plunger Back Catalog number: CTS-10323 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-4126 Plunger Seal and Back Up Ring Price on request CTS-00230-02 O-Ring, PTFE Price on request CTS-21586 1100 Series Essential Pack, G1310A/G1311A Pump Price on request