Check Valve Cartridge, 2/pk Back Catalog number: CTS-10493 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-3321 Wash Seal Gasket, 6/pk Price on request CTS-3209 Syringe Seal, 250μL/2500μL Price on request CTS-A145 Inlet Check Valve Price on request