4" Steel Grate Collar | Agri Drain and is not designed for

and is not designed for Corrugated HDPE Drainage Pipe

This 24" version fits on the outside of Corrugated HDPE Drainage Pipe and is intended for heavier-duty surface conditions

This 12" collar fits on the outside of PVC or Corrugated Metal Pipe (CMP) and holds the grate flush inside the collar

and includes a lid with self-tapping screws

it works with smoothwall pipe or Corrugated HDPE Drainage Pipe and uses durable 1/16" gum rubber with a wooden frame

4" Steel Grate Collar | Agri Drain and is not designed forHeavy steel grate collar designed to protect drainage intakes and improve water flow. This 4" collar fits on the outside of PVC, Corrugated Metal Pipe (CMP), or Corrugated HDPE Drainage Pipe and holds the grate flush inside the collar.