Ertec Combo Guard - Fits 42" x 28" grate

Combo Guard (CG) is a patented, low-cost, four-layer system designed to reduce sedimentation into combination curb and grate storm drain inlets. It is engineered to balance the critical tradeoff between allowing water to flow off the street for safety and capturing sediment. The integrated filter has a vertical height of 2 inches to allow bypass in high flow conditions while filtering storm water above the ground for easy inspection. The system is easy to install without removing the grate and is made from recycled, UV-stable materials.