Metering device Seal Back Catalog number: 11-3830 Availability: In the manufacturer's stock Price on request - + Recommended 11-4122 PTFE Diaphragm, LC-30AD/i-Series, 2/pk Price on request PS7100150 MarvelXACT™ PEEKsil™ 100µm ID x 150mm Price on request 11-1597 Piston Assembly, TZP Price on request