1100 Series Essential Pack, G1310A/G1311A Pump Back Catalog number: CTS-21586 Availability: In the manufacturer's stock Price on request - + Recommended 11-4121 Ceramic Plunger Holder Assembly, LC-10ADvp Price on request CTS-21347 Plunger Seal Price on request CTS-10584 Ceramic Plunger Assembly Price on request