Defend your drainage system with the Dura Slope® Channel Drain Grate. Made of tough, weather-resistant galvanized steel, the drain grate prevents leaves and other debris from entering and potentially clogging drain pipes. Works with the Dura Slope Channel Drain to capture runoff from hardscapes. The grate, also known as a drain cover, has an open surface of 23.09 sq. in. per linear ft. and flow rate of 70.64 GPM per linear ft. Rated for NDS Class C loads (up to 325 PSI) when properly installed.