PTFE Diaphragm, LC-30AD/i-Series, 2/pk Back Catalog number: 11-4122 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended 11-4150 Tubing D-R Assembly Price on request CTS-5746 Reference Valve Rebuild Kit Price on request CTS-21591 PM Kit, G4226A Price on request