The Quatrefoil square is an essential grille to have when using our Quatrefoil channel grates in an L, T or X shape. The junction box beneath the grille clips into the channel grating to allow for smooth drain water flow around corners. Examples and installation guide are shown in the attached photographs
Cast iron air bricks are used either externally or internally, built into walls (either brick or stone) to fit flush with the wall surface and secured in place with mortar or plaster.
9" x 3" (225 x 75mm) air bricks are a very popular size as it is the standard size of an old fashioned British house brick. If air flow is important, again the max flow, as the name suggests is a clear winner.
The 9x6 air bricks are twice the size of a standard house brick, therefore allowing a greater free air flow. The 9x9 and 12x9 air bricks are also available to supply larger air flows.
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The Cast Iron Air Brick Company supply cast air bricks and a huge range of ventilation grilles and gratings to individuals and the trade. Our items are used to replace existing defective cast iron ware and are more commonly used in new builds.
former customers properties including Queens residence at Buckingham Palace, prime ministers home at Chequers, Oxford and Cambridge universities and new builds including London 2012 Olympics.
We are able to supply just one air brick and can also supply architects and developers with large quantities.