Keep harmful leaves and debris from entering the Dura Slope® Channel Drain system with this grate with rounded edges on top of the EZ-Track Radius Coupling. Attaches to the radius coupling with screws. Made of galvanized steel and stands up to harsh environments. The radius coupling grate has an open surface area of 1.31 sq. in. per grate and flow rate of 4.01 GPM per grate. Rated for NDS Class C loads (up to 325 PSI) when properly installed.