Piston Assembly, Sapphire Back Catalog number: 11-1596 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-6613 Black Plunger Seal Price on request CTS-10989 Face Seals, 4/pk Price on request CTS-21109 Capillary, 600mm x 0.17mm ID Price on request