250μL Syringe Back Catalog number: CTS-A168 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21011 Cartridge Check Valve System Kit Price on request CTS-10493 Check Valve Cartridge, 2/pk Price on request CTS-21406 Peristaltic Pump Cartridge, WPS/AC Price on request