18" Heavy Traffic Grate Collar | Agri Drain Zinc dichromate-plated steel resists corrosion

Zinc dichromate-plated steel resists corrosion and installs inside 21" I

It fits outlet ODs from 21" to 23" and is built for durable outlet protection on large PVC and Corrugated Metal Pipe (CMP)

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

It fits outlet ODs from 21" to 23 and is designed for PVC and Corrugated Metal Pipe (CMP)

18" Heavy Traffic Grate Collar | Agri Drain Zinc dichromate-plated steel resists corrosionHeavy steel traffic grate collar designed for traffic areas while protecting drainage intakes and improving water flow. This 18" collar fits on the outside of PVC or Corrugated Metal Pipe (CMP) and holds the grate flush inside the collar.