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 11-3321 Wash Seal Gasket, 6/pk Price on request CTS-5313 Compression Screw, SS Price on request CTS-10285 TFE 3-Way Valve 4 (V4) Price on request