1100 Series Essential Pack, G1310A/G1311A Pump Back Catalog number: CTS-21586 Availability: In the manufacturer's stock Price on request - + Recommended CTS-10319 Sapphire Plunger Price on request 11-4179 HPV Rotor, SIL-30AC, SIL-30ACMP Price on request CTS-21406 Peristaltic Pump Cartridge, WPS/AC Price on request