Sapphire Plunger Back Catalog number: CTS-10319 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-3832 Wash Seal, PE, 1220, 1260, 1290 Price on request CTS-10759 Piston Seal Backup Ring Price on request CTS-10757 High Pressure Seal Kit Price on request