Sapphire Plunger Back Catalog number: CTS-2369 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21586 1100 Series Essential Pack, G1310A/G1311A Pump Price on request CTS-11121-02 Wash Seal, 2/pk Price on request 11-4126 Plunger Seal and Back Up Ring Price on request