Face Seals, 4/pk Back Catalog number: CTS-10989 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-4180 LPV Rotor, SIL-30AC, SIL-30ACMP Price on request CTS-10328 Optics Cover Window Price on request CTS-21287 Needle Kit, 15 µL with Needle Seat and Needle Guid Price on request