Seal Extension Tube Back Catalog number: 11-2569 Manufacturer: SCIENCIX Availability: In the manufacturer's stock Price on request - + Recommended CTS-3209 Syringe Seal, 250μL/2500μL Price on request CTS-21463 Check Valve Cartridge, Ceramic, 2/pk Price on request CTS-21526 Jig, Diaphragm Price on request