Needle Seal, SIL-30AC, SIL-30ACMP Back Catalog number: 11-4052 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended 11-1600 Check Valve, Secondary Inlet Price on request 11-4126 Plunger Seal and Back Up Ring Price on request CTS-11434 Sapphire Plunger Price on request