1100 Series Essential Pack, G1310A/G1311A Pump Back Catalog number: CTS-21586 Availability: In the manufacturer's stock Price on request - + Recommended CTS-21169 Assy, Capillary, 90mm x 0.17mm ID, w/Fittings Price on request 11-3889 Needle Seat Assembly, 0.12mm ID Price on request CTS-10547 Pump Seal, Gold Price on request