Biodegradable Straw Blanket, 8' x 112.5' | Agri Drain This 18" collar fits on

This 18" collar fits on the outside of PVC or Corrugated Metal Pipe (CMP) and holds the grate flush inside the collar

This 12" version fits on the outside of PVC or Corrugated Metal Pipe (CMP) and is intended for heavier-duty surface conditions

Zinc dichromate-plated steel resists corrosion and installs inside 6" I

Built with 1/2" PVC and 1/2" wide slots

and quick shutoff in low-pressure or vacuum-line applications

Biodegradable Straw Blanket, 8' x 112.5' | Agri Drain This 18" collar fits onLandlok S1 Biodegradable Straw Blanket is ideal for erosion control on moderate slopes with light runoff conditions. Made from straw fibers stitch bonded to netting, this 8' x 112. 5' blanket provides short term protection while helping stabilize disturbed soil and support vegetation establishment.