With the M3 60 membrane box for in-situ concrete and factory production, cables and pipes can be inserted into the M15 ¿ M32 combination entries without tools. The membrane technology makes the boxes absolutely concrete-tight. With the SCS connection technology, several boxes can be connected to one another quickly and firmly in accordance with standards. Removing the webs enables easy through-wiring and the easy installation of pre-wired devices. The integrated pipe grip ensures safe strain relief. Subsequent cutting of the pipes is not necessary. The attachable wings allow the box to be attached to the steel reinforcement quickly and easily without a counter bearing or support element. The special design of the wings also ensures the 15 cm standard distance to the door formwork. Rotating the wings allows it to be used with concrete cover between 20 and 60 mm. Thanks to the compact octagonal design with a depth of 48 mm, the M3 60 membrane box can also be used in confined spaces without affecting the statics. The membrane sealing lip ensures a clean finish and prevents concrete film from entering, which means that the Primo M3 60 membrane box with a 60 mm installation opening is also perfect for exposed concrete.