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-21463 Check Valve Cartridge, Ceramic, 2/pk Price on request CTS-10724 Injector Needle Price on request 11-4152 Tubing D-L Assembly Price on request