Check Valve, Double Ball & Seat Back Catalog number: CTS-A11095 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21262 Needle, Uncoated 20 Series Price on request CTS-21287 Needle Kit, 15 µL with Needle Seat and Needle Guid Price on request 11-3332 100μL Syringe for WPS-3000 Series Price on request