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 11-3889 Needle Seat Assembly, 0.12mm ID Price on request CTS-A117 Inlet Check Valve Price on request CTS-10772 Pump Seals, Low Pressure Price on request