1100 Series Essential Pack, G1310A/G1311A Pump Back Catalog number: CTS-21586 Availability: In the manufacturer's stock Price on request - + Recommended CTS-A11135 50μL Std. Zirconia Mixer Price on request CTS-11435 Seal, Needle PEEK™ Price on request CTS-10493 Check Valve Cartridge, 2/pk Price on request