For modern installations in combined frames. Highly rigid design makes the device installation simpler. Inlet openings made of flexible material. Air proofed even with inserted cable or pipe. Prevents airflow through the installation. Suitable for low energy and passive houses. Five tips on the external side indicate the drilling points. Mounting bolts feature double-threaded design for quick installation. Installation box in the hole is made by tightening mounting screws. Cable installation is done by removing (breaking) pre-pressed membrane inlet and followed by inserting the cable possibly pipe. Protected by European industrial design trademark. The IP30 protection a box fitted with an instrument with protection a higher or equal IP30 protection. When mounting, it is not necessary to countersink the plasterboard edge.
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