Standard Union Polypropylene 1/4-28 Back Catalog number: P-620 Availability: In the manufacturer's stock Price on request - + Recommended 460 T CONNECTOR PP, 6mm (Nominal) Price on request P-779 NanoTight Union 1/16" OD Tubing, PEEK, 0.005" Price on request JR-5004-5 Ferrule, PEEK, double 1/16 , 5/PAK Price on request