Sapphire Plunger Back Catalog number: CTS-10319 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-4181 Seal Wash (0.0787 ID, Fixed), 2/pk Price on request 11-3321 Wash Seal Gasket, 6/pk Price on request CTS-A159 Inlet Check Valve Price on request