Product charateristics

• Auto - adjusting for a concrete thickness from 65mm to 90mm : time saving because no need to adjust the height of the backbox.
• Four pre - cut faces to easily accept trunkings (sections L 75mm x H 25mm minimum, L 225mm x H 38mm maximum) and pipes (diameters 20mm, 25mm, 32mm)
• Perfectly insulated from the concrete pouring thanks to a plastic tape on its four faces.
• Supplied with a metallic mask insulating from the concrete, during its pouring, and equipped with foldable lids to make handles to facilitate its extraction once dry concrete.
• Material : galvanised steel and plastic corners