Piston, Ceramic Back Catalog number: CTS-21219 Availability: In the manufacturer's stock Price on request - + Recommended CTS-21280 Lamp, ACQUITY Arc/UPLC PDA Performance Maintenance Price on request 11-4181 Seal Wash (0.0787 ID, Fixed), 2/pk Price on request CTS-A11342 Tube Assembly, Transducer to Check Valve Price on request