8" Steel Hinged Heavy Duty Flap Gate for PVC, CMP | Agri Drain This 24" collar fits on

This 24" collar fits on the outside of Corrugated HDPE Drainage Pipe and holds the grate flush inside the collar

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

and fits inside 18" I

Flexible Fernco coupling for secure drainage pipe connections between 6" clay and 6" clay

It fits outlet ODs from 20

8" Steel Hinged Heavy Duty Flap Gate for PVC, CMP | Agri Drain This 24" collar fits onHelp keep damaging water out of drainage systems with this 8" heavy duty hinged flap gate. It fits outlet ODs from 8" to 9. 13" and is built for durable outlet protection on PVC and Corrugated Metal Pipe (CMP).