18" Round Drop in Grate Aluminum Posts To make water flow management

To make water flow management easy

It can be applied over hundreds of different species without harming them but keeps weeds from emerging

This model delivers nearly 3 times as much liquid at any given pressure

This is particularly true when planted late in the fall

Winter weather won't stop you anymore

18" Round Drop in Grate Aluminum Posts To make water flow managementThis drop in grate fits a 18" ID culvert, sewer or drain fitting. Place this at the top of the ground or the height you want water to enter the culvert to make water flow management easy. 18" Round Aluminum Grate. Open surface area 85. 60 square inches. 261. 86 gallons per minute.