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-21422 Needle Seal Kit Price on request CTS-21169 Assy, Capillary, 90mm x 0.17mm ID, w/Fittings Price on request