O-Ring, PTFE Back Catalog number: CTS-11092 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A11372 Tube Assy, Transducer to Check Valve, I2V Price on request CTS-11380 2690/2695 Performance Maintenance Kit w/Seal Pack Price on request CTS-A11145 Tube Assy, System Outlet, SDS Price on request