Check Valve, Double Ball & Seat Back Catalog number: CTS-A11095 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10323 Sapphire Plunger Price on request CTS-3195 250μL Syringe Tip Price on request CTS-10788-5 Needle Wash Frit, 5/pk Price on request