PTFE Diaphragm, 2/pk Back Catalog number: 11-2891 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-6613 Black Plunger Seal Price on request CTS-0069 Tubing, Head to Tee Price on request CTS-21564 Needle, Uncoated 10 Series Price on request