Inlet Check Valve Back Catalog number: CTS-21145 Availability: In the manufacturer's stock Price on request - + Recommended CTS-11297 Sapphire Plunger Price on request 11-3601 ACQUITY H SM-FTN Performance Main. Kit,700005236 n Price on request CTS-11119-02 Head Plunger Seal, 2/pk Price on request