Check Valve Assembly, Inlet Back Catalog number: 11-1598 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A11372 Tube Assy, Transducer to Check Valve, I2V Price on request CTS-A11135 50μL Std. Zirconia Mixer Price on request CTS-10984 Sparge Diffuser Price on request