Peristaltic Pump Back Catalog number: CTS-21183 Availability: In the manufacturer's stock Price on request - + Recommended CTS-12016 Compression Screw, 1/16", SS, 10/pk Price on request 11-1596 Piston Assembly, Sapphire Price on request CTS-21567 PM Kit, Seal Wash for Binary Pump G4240A Price on request