Our PATENTED two-piece drain cover keeps drains flowing. No more flooded basements. Position over your existing stairwell drain or floor drain. Reinforced composite outer cover features a slotted barrier wall that keeps grass, leaves, twigs, blossoms and other common yard debris from reaching the drain. Second stage composite perforated screen catches smaller debris. Installs in seconds without tools. Integrated guide pin holds it in position over the drain. The cover and perforated screen are easily separated to spray clean with a garden hose.