This 140cm Square Galvanised Grid allows the maximum amount of water to drain back into the reservoir (not included). The  grid is hidden with cobbles, rocks, paddle stones etc. A square grid is ideal for use for an in-ground sump using a round reservoir or an excavated hole lined with pond liner as the corners of the grid can rest on the ground. There is 20cm x 20cm gap in the grid so the pump can be serviced without the water feature being dismantled. The insert piece for this access point is included

Dimensions: 140cm x 140cm x 2cm deep, mesh size 4cm x 4cm. Pump access gap 20cm x 20cm. Weight 22kg. Can support 150kg per m2 

Tip: For heavy features it is important to take the weight off any plastic reservoir under the grid by building up a column of bricks or blocks under each corner of a square grid, or if using a round grid, build the columns inside the reservoir