PTFE Diaphragm, 2/pk Back Catalog number: 11-2891 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10597 Wash Tube Seal Kit, 4/pk Price on request 11-3795 Sapphire Plunger w/Holder Price on request PL7075600 MarvelXACT PLS 75µm x 600mm Price on request