Needle Seal, SIL-30AC, SIL-30ACMP Back Catalog number: 11-4052 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended 11-4063 Outlet Check Valve Price on request CTS-21406 Peristaltic Pump Cartridge, WPS/AC Price on request CTS-11222 Seal Pack Assembly Kit Price on request