With press-out membrane, windproof. Diameter: 68 mm Depth: 47 mm Wherever you need to prevent annoying air circulation in your electrical installation-be it for energy efficiency reasons or because of requisite cleanroom or hygiene conditions-our cavity wall outlets with press-out membrane are the first choice. Pipes or tubes can be pressed through the membranes without additional tools, saving you even more time. The E 4000 and E 4100 models have a raised, enlarged press-out membrane on the side for tubes up to 25 mm, which are ideal for prefabricated housing areas. It goes without saying that all models in this series are VDE-certified and tested in accordance with the "blower-door test". Use innovation from F-tronic. Windproof Easy to install Easy to handle without the need for additional tools Improved sound insulation Material: polypropylene, flame-retardant, halogen-free and silicone-free as defined by the standard Proven design in top quality https://elecena.pl/product/18515813/7360028-cavity-wall-switch-box-diameter-68-mm-depth-47-mm 2021-05-19 https://elecena.pl/product/18515813/7360028-cavity-wall-switch-box-diameter-68-mm-depth-47-mm 2021-06-22 https://elecena.pl/product/18515813/7360028-cavity-wall-switch-box-diameter-68-mm-depth-47-mm 2021-09-27 https://elecena.pl/product/18515813/7360028-cavity-wall-switch-box-diameter-68-mm-depth-47-mm 2022-01-28 https://elecena.pl/product/18515813/7360028-cavity-wall-switch-box-diameter-68-mm-depth-47-mm 2022-05-31 https://elecena.pl/product/18515813/7360028-cavity-wall-switch-box-diameter-68-mm-depth-47-mm 2022-06-27 https://elecena.pl/product/18515813/7360028-cavity-wall-switch-box-diameter-68-mm-depth-47-mm 2023-04-30 https://elecena.pl/product/18515813/7360028-cavity-wall-switch-box-diameter-68-mm-depth-47-mm 2024-03-07 https://elecena.pl/product/18515813/7360028-cavity-wall-switch-box-diameter-68-mm-depth-47-mm 2024-04-27 https://elecena.pl/product/18515813/7360028-cavity-wall-switch-box-diameter-68-mm-depth-47-mm 2024-07-04 https://elecena.pl/product/18515813/7360028-cavity-wall-switch-box-diameter-68-mm-depth-47-mm 2025-04-16 https://elecena.pl/product/18515813/7360028-cavity-wall-switch-box-diameter-68-mm-depth-47-mm 2025-10-05