12" Steel Hinged Flap Gate for PVC, CMP | Agri Drain This low-profile 18" grate fits

This low-profile 18" grate fits on the outside of Corrugated HDPE Drainage Pipe and is oversized to accommodate varying pipe ODs

5" and is built specifically for Corrugated HDPE Drainage Pipe

and 24" pipe

Horizontal in-line installation helps protect basements and field tile when creeks rise

Flexible Fernco coupling for secure drainage pipe connections between 6" PVC and 4" PVC

12" Steel Hinged Flap Gate for PVC, CMP | Agri Drain This low-profile 18" grate fitsHelp keep damaging water out of drainage systems with this 12" steel hinged flap gate. It fits outlet ODs from 12" to 14" and is designed for PVC and Corrugated Metal Pipe (CMP).