ACQUITY I-Class SM-FTN Performance Maint. Kit,2890 Back Catalog number: CTS-21240 Availability: In the manufacturer's stock Price on request - + Recommended 11-1600 Check Valve, Secondary Inlet Price on request CTS-A11142 Tube Assy, Inject Outlet Price on request CTS-10323 Sapphire Plunger Price on request