Sapphire Plunger Back Catalog number: CTS-11297 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-2891 PTFE Diaphragm, 2/pk Price on request CTS-10788-5 Needle Wash Frit, 5/pk Price on request CTS-21129 Check Valve, Ti, Price on request