Sapphire Plunger Back Catalog number: CTS-3102 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-1602 Seal, Polyethylene, High Pressure, Piston Price on request CTS-10757 High Pressure Seal Kit Price on request CTS-11121-02 Wash Seal, 2/pk Price on request