Description
Cavity liner for use with air bricks to form a duct through walls to assist ventilation.
Specifications
| Depth | 200 mm |
| Height | 140 mm |
| Width | 215 mm |
| Weight | 5 kg |
| Material | clay |
| Colour | brown |
| Type | cavity liner |
| Brand Name | hepworth terracotta |
| Manufacturer Model No | ya14b |