ACQUITY I-Class SM-FTN Performance Maint. Kit,2890 Back Catalog number: CTS-21240 Availability: In the manufacturer's stock Price on request - + Recommended CTS-10285 TFE 3-Way Valve 4 (V4) Price on request CTS-10584 Ceramic Plunger Assembly Price on request 11-3602 Tubing, Pump Outlet, GP Price on request