Coupling Nickel Plated Brass ( Tube to Tube ) Metric

Alpha Fittings|50040N-3|Nickel Plated Brass Push to Connect Fittings ( Tube to Tube ) , Coupling , 3 mm OD. Swift-Fit is a brand name for a universal thread. Universal thread means that these fittings work with both Inch and Metric thread systems. Compatible thread systems are NPTF,NPT, BSPP, ISO 7, BSPT, PT, G, and ISO 228.