Impact- and frost-resistant HDPE housing. High resistance metal frame 30 × 30 mm. Moisture and noise insulation. Dual function 3/6 lt, adjustable internal mechanism. The minimum wall thickness is 110 mm. Suitable for concrete walls and plasterboard.
Impact- and frost-resistant HDPE housing. High resistance metal frame 30 × 30 mm. Moisture and noise insulation. Dual function 3/6 lt, adjustable internal mechanism. The minimum wall thickness is 110 mm. Suitable for concrete walls and plasterboard.
