Sapphire Plunger Back Catalog number: CTS-11434 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-3209 Syringe Seal, 250μL/2500μL Price on request CTS-21480 Check Valve, Cartridge Price on request CTS-00230-02 O-Ring, PTFE Price on request