Plunger Wash Seal Back Catalog number: CTS-10391 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21406 Peristaltic Pump Cartridge, WPS/AC Price on request 11-2642 Needle Port Seal, AS-100, ASI-100T Price on request CTS-21585 PM Kit, 1220 Price on request