Pipelife 2835527 is a corrugated double-wall polypropylene formwork pipe with an outer diameter of 630 mm, an inner diameter of 554 mm, and a length of 3 m in black. It provides a permanent lost-form for round concrete foundations and column bases, replacing site-built timber shuttering. The SN8 ring stiffness supports the concrete pressure during pouring and simplifies handling on site. Typical use is for pole foundations, pier supports, and light-mast bases in civil and utility construction.