Check Valve Cartridge, 2/pk Back Catalog number: CTS-A094 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-12016 Compression Screw, 1/16", SS, 10/pk Price on request CTS-11080 Alliant Solvent Mgr PM Kit Price on request CTS-3209 Syringe Seal, 250μL/2500μL Price on request