Sapphire Plunger Back Catalog number: CTS-10475-1 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21567 PM Kit, Seal Wash for Binary Pump G4240A Price on request CTS-20612 Plunger Seal, Black Price on request 11-4133 Gold Plunger Seal Price on request