Sapphire Plunger Back Catalog number: CTS-11425 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21109 Capillary, 600mm x 0.17mm ID Price on request CTS-21011 Cartridge Check Valve System Kit Price on request CTS-21567 PM Kit, Seal Wash for Binary Pump G4240A Price on request