Drain the water, not the debris with the EZ-Track Radius Coupling Grate with Perforated Design. Use on top of the EZ-Track Radius Coupling to add bends to the Dura Slope channel drain run. Attaches to coupling with screws. Stainless steel is weather-resistant and withstands harsh conditions. Features an open surface area of 0.86 sq. in. per grate and flow rate of 2.63 GPM per grate. Rated for NDS Class A Loads (up to 60 PSI) when properly installed.