Cartridge Check Valve Housing, 2/pk Back Catalog number: CTS-21010 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended CTS-10694 Plunger Seal Price on request CTS-A096 Syringe Assembly, 250μL Price on request CTS-21243 1/16'' Ferrule set, 2/pk Price on request