Peristaltic Pump Cartridge, WPS/AC Back Catalog number: CTS-21406 Availability: In the manufacturer's stock Price on request - + Recommended CTS-11297 Sapphire Plunger Price on request CTS-0621 Inlet Check Valve Cartridge Price on request CTS-21171 Rotor Seal, H-Assy, 6 Port 2-Position Price on request