Plunger Seal Back Catalog number: CTS-2294 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21100 UPLC Check Valve Assy, Spring Loaded Price on request CTS-21219 Piston, Ceramic Price on request CTS-21406 Peristaltic Pump Cartridge, WPS/AC Price on request