20" Polylok 3017-C20 D-Box & Riser Cover

Part Number

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


  • Cover
  • Factory installed water-tight gasket
  • Six screws (#10x1-1/2” stainless steel square drive)