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-10475-1 Sapphire Plunger Price on request CTS-5531-07 Solvent Bottle Filter, 7/pk Price on request CTS-A106 Rotor Seal Price on request