OBO Bettermann's cavity wall lining box, model 2003802, measures 68 mm in diameter and 47 mm in depth, and is packaged in sets of 25. These junction boxes are designed for use in cavity walls, providing a reliable solution for electrical installations. The product ensures secure housing for electrical connections, ideal for residential and commercial construction projects. https://elecena.pl/product/28471341/obo-bettermann-2003802-cavity-wall-lining-box-68x47mm-25-pcs 2025-04-17 https://elecena.pl/product/28471341/obo-bettermann-2003802-cavity-wall-lining-box-68x47mm-25-pcs 2026-08-22