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 CTS-A11095 Check Valve, Double Ball & Seat Price on request CTS-10323 Sapphire Plunger Price on request 11-3830 Metering device Seal Price on request