Check Valve, Double Ball & Seat Back Catalog number: CTS-A11095 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-11222 Seal Pack Assembly Kit Price on request CTS-A096 Syringe Assembly, 250μL Price on request CTS-21089 Needle Seal (For pH 1-14, for operation up to 130 Price on request