Sapphire Plunger Back Catalog number: CTS-10323 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-21406 Peristaltic Pump Cartridge, WPS/AC Price on request CTS-21585 PM Kit, 1220 Price on request CTS-10692 HPMV Gold Seals, 2/pk Price on request