20" Polylok 3017-G20 Plastic D-Box Grate

Part Number

These plastic grates are designed to fit the 20” drainage box or any of the 20” diameter risers. If you need to replace the grate on your drainage box or riser, there is no need to dig up your drainage box or remove the riser. Remove the existing grate, screw down the new one and you’re all set. Fade resistant, available in green.


  • Six screws (#10x1-1/2” stainless steel square drive)