Alliance Head Plunger Seal Kit, Black, 2/pk Back Catalog number: CTS-10711 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21406 Peristaltic Pump Cartridge, WPS/AC Price on request CTS-2369 Sapphire Plunger Price on request 11-2588 Main Piston Seal Price on request