Cartridge Check Valve System Kit Back Catalog number: CTS-21011 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended CTS-10724 Injector Needle Price on request CTS-A11381 Needle, SS, 30μL Price on request CTS-3209 Syringe Seal, 250μL/2500μL Price on request