Hollow wall boxes, windtight | penetration membranes to M25

technical details:
- housing material: plastic
- color: blue
- concealed clamping device
- suitable for flush-mounting and cavity wall mounting
- all details according to manufacturer

single hollow wall box
- type: single hollow wall box, windproof
- diameter: approx. 60mm
- depth: approx. 47mm
- 2x screw holes (supplied with screws)
- 2x puncture membranes for M 16/20
- 2x puncture membranes for M 20/25

double hollow wall box
- type: double hollow wall box, windproof
- length: approx. 145mm
- diameter: approx. 60mm
- depth: approx. 47mm
- 4x screw holes (supplied with screws)
- 4x puncture membranes for M 16
- 2x puncture membranes for M 16/20
- 2x puncture membranes for M 20/25

Your order includes:
- 1x/ 3x/ 5x/ 10x/ 20x single hollow wall box in windproof design or
- 1x/ 3x/ 5x/ 10x double hollow wall box in windproof design