The missing component for perfect protection, unique, new technology to comply with the requirements for cable outlets in fire protection walls, also approved for bushings, for 2 cables or an M25 electrical installation pipe, familiar installation, as with standard cavity wall boxes, quick, easy and safe, ETA approval up to EI90 Mounting type: HW Milling hole diameter: Ø 35 mm Depth: 55 mm Cable entry: 2 Pipe entry M25: 1 Max. conductor cross-section: 2.5 mm² Suitable for panel thickness: 5-30 mm Protection class (IP): IP30 Box material: PP Accessories: incl. lid