Needle Seal, PEEK™ SIL-20 Back Catalog number: CTS-11315 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-0621 Inlet Check Valve Cartridge Price on request CTS-5531-07 Solvent Bottle Filter, 7/pk Price on request CTS-21219 Piston, Ceramic Price on request