The innovative Tube-Mac® PreFiS fitting features a unique design with four inner metal rings, ensuring secure bonding of every tube. Multi-certified, PreFiS is engineered to withstand harsh chemicals, extreme operating pressures up to 630 bar, and high temperatures. Fittings are available in a variety of forms and sizes, in both carbon and stainless steel.

Originally invented in Germany in 1996, the PreFiS product has been continually enhanced to meet modern standards, including improved tools and pumps. Over the past 29 years, PreFiS fittings have been installed on several cruise vessels, luxury yachts, offshore platforms, tunnels, and a wide range of other demanding applications.