Profile: Diba Industries Ltd specializes in offering inert fluid transfer subassemblies, specialty components and tubing assemblies. We offer a range of different fitting systems to suit a variety of applications. In each system, a range of different colored polypropylene nuts are available to connect 1/16 or 1/8 inch OD tubing into 1/4 inch-28 UNF, M6 or 5/16 inch-24 UNF flat-bottom ports. The Omnifit cap tube connection system is a versatile system for connecting different type of tubing easily and quickly. Tubing suitable for use includes PTFE, glass, PVC, stainless steel and other hardwall tubing. Hardwall tubing sizes between 1mm and 4mm OD may be connected.