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.
Spec sheet for installation of plastic channel grating
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.