Plunger Seal Back Catalog number: CTS-10693 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-5559 Priming Syringe Needle Price on request CTS-21463 Check Valve Cartridge, Ceramic, 2/pk Price on request 11-4073 LC-30AD Plunger Holder Assembly, UHP2 (w/Diaphragm Price on request