PTFE Diaphragm, 2/pk Back Catalog number: 11-2891 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-12013 Tungsten Lamp (1000 hr) Price on request 11-1596 Piston Assembly, Sapphire Price on request CTS-21100 UPLC Check Valve Assy, Spring Loaded Price on request