£60.00 – £220.00
Square Slotted Air Grilles available undrilled as standard with a painted black finish.
Can be fitted as air vents with the slots either horizontally or vertical although more often fitted horizontally, which allows for less rainwater access as the horizontal ribs act as louvres. One of our most popular products installed in hundreds of properties across the UK and the world, although most notably in Tower of London, England
Also used as drainage grilles for rainwater and surface water runoff. (without mesh)
Drilling & mesh can be added for an additional cost, prices vary from £15 – £25 per grille for mesh, and £5 – £15 per grille for drilling.
| Item | Nom. Size (Inch) | Size (mm) | Vent Size (mm) | Weight (kg) | Air Flow (mm2) | Plate Thickness (mm) |
|---|---|---|---|---|---|---|
| Slot 4 | 4 x 4 | 100 | 10 | 0.5 | 3,000 | 9 |
| Slot 5 | 5 x 5 | 125 | 8 | 0.7 | 5,000 | 9 |
| Slot 6 | 6 x 6 | 150 | 10 | 0.8 | 8,750 | 9 |
| Slot 7 | 7 x 7 | 175 | 14 | 1.5 | 11,000 | 11 |
| Slot 8 | 8 x 8 | 200 | 8 | 2 | 14,500 | 9 |
| Slot 9 | 9 x 9 | 225 | 13 | 2.6 | 20,000 | 12 |
| Slot 10 | 10 x 10 | 255 | 13 | 3 | 23,000 | 12 |
| Slot 12 | 12 x 12 | 305 | 14 | 5.0 | 41,000 | 12 |
