Viega MegaPress XL® is the only press fitting system for 2 ½” to 4″ diameter carbon steel pipe. Installed using the Viega MegaPress XL PressBooster, the system is suitable for use with Schedule 10 to Schedule 40 carbon steel pipe and approved for more applications than any other carbon steel press fitting system. On average, MegaPress XL makes easy, secure connections in 25 seconds, and saves up to 60% in installation costs and up to 90% in time. Viega. Connected in quality.