The Knowles clay air brick with square holes is designed for use in external walls where ventilation is required. Measuring 215 x 140mm, it matches standard brick dimensions for straightforward integration into brickwork.
Typically used to promote air flow to sub-floor voids or cavity wall spaces, this red air brick helps prevent the build-up of moisture and supports a healthy internal environment on site. Its colour and material make it a suitable option for matching traditional and contemporary builds.
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