1100 Series Essential Pack, G1310A/G1311A Pump Back Catalog number: CTS-21586 Availability: In the manufacturer's stock Price on request - + Recommended CTS-A094 Check Valve Cartridge, 2/pk Price on request PS7075600 MarvelXACT™ PEEKsil™ 75µm ID x 600mm Price on request 11-4126 Plunger Seal and Back Up Ring Price on request