O-Ring, PTFE Back Catalog number: CTS-11092 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended CTS-10711 Alliance Head Plunger Seal Kit, Black, 2/pk Price on request CTS-21262 Needle, Uncoated 20 Series Price on request CTS-21012 Compression Screws & Ferrules, 1/16", SS, 5/pk Price on request