Description
300 mm square
Terracotta cavity liner used with air bricks to form a duct through walls to assist ventilation
Features non-rock 3 point suspension covers
To suit 450 mm chamber
concrete floor loads
Ruberoid Hyload Original DPC 450 mm x 20 m Lead Flashing 300 mm squareFlexible, polymeric sheet material Low permeability to ground gases In normal working conditions, the material is designed to remain effective for the life of the structure
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy























