Sapphire Plunger Back Catalog number: CTS-11297 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21566 PM Kit, Seal Wash for Binary Pump G4204A Price on request CTS-21243 1/16'' Ferrule set, 2/pk Price on request CTS-11119-02 Head Plunger Seal, 2/pk Price on request