2690/2695 Performance Maintenance Kit Back Catalog number: CTS-10988 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A11187 Outlet Check Valve Price on request CTS-A11142 Tube Assy, Inject Outlet Price on request 11-4122 PTFE Diaphragm, LC-30AD/i-Series, 2/pk Price on request