21" Steel Hinged Flap Gate for PVC, CMP | Agri Drain This 4" collar fits on

This 4" collar fits on the outside of PVC

Prevent rodents and other pests from plugging drainage systems with this 24" Band-Type Rodent Guard

This 30" collar fits on the outside of Corrugated HDPE Drainage Pipe and holds the grate flush inside the collar

Help keep pipe from being washed out with this 4' x 4' Anti-Seep Collar

Heavy steel grate collar designed to protect drainage intakes and improve water flow

21" Steel Hinged Flap Gate for PVC, CMP | Agri Drain This 4" collar fits onHelp keep damaging water out of drainage systems with this 21" steel hinged flap gate. It fits outlet ODs from 21" to 23 and is designed for PVC and Corrugated Metal Pipe (CMP).