Needle Seal, Vespel® Back Catalog number: CTS-10686 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-A11187 Outlet Check Valve Price on request CTS-21192 Cartridge, BioAcquity, I2V Price on request CTS-21100 UPLC Check Valve Assy, Spring Loaded Price on request