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-10394 Pump Seal, Black Price on request PL7025350 MarvelXACT PLS 25µm x 350mm Price on request CTS-21463 Check Valve Cartridge, Ceramic, 2/pk Price on request