Debris comes in all shapes and sizes, but the ones that fall from trees are some of the worst for your drainage system. Protect your drain from leaves, needles, and twigs that fall onto the rooftop and down the gutter downspout with National Diversified Sales 900DSG 9" Black Plastic Square Downspout Defender Catch Basin Drain Grate. The unique grate design captures more stormwater runoff than a traditional flat drain grate. The grate has an angled face that closes the distance water falls from the downspout to prevent water from splashing against walls, while blocking debris from clogging the pipeline. The Downspout Defender Grate fits 9" catch basins, risers, and low-profile adapters. Grate is made of high-density polyethylene (HDPE) treated with UV inhibitors. Hassle-free limited lifetime warranty guarantees the NDS product is free from defects—or we’ll replace it.