Size compatibility and universal fit Customized for outdoor use. The dome design comes in a variety of sizes and precisely fits most standard floor drain diameters. Whether it is a courtyard drain, a balcony downspout, or a rooftop gutter, it connects smoothly and helps avoid installation hassles and drainage hazards caused by dimensional discrepancies. 360° 3D filtering barrier The dome shape and precise grid create a comprehensive interception barrier. It blocks large debris such as leaves and stones while effectively filtering fine particles like mud, sand, and broken branches. This prevents siltation inside the pipes and keeps the drainage system unobstructed. Stainless steel anticorrosion diamond body Crafted from 304 stainless steel and treated with a rustproof process, it resists rust, deformation, and cracking even under long exposure to rain, snow, and direct sunlight. Its service life is over three times longer than that of ordinary metal covers. Fallproof safety design The raised height and gridlike loadbearing strength are optimized to withstand the pressure of adults while preventing children and pets from falling into the drain. It also prevents small objects from falling and clogging the drain, balancing practicality and safety. Use scenarios Courtyard drains and outdoor patio areas where debris and sediment can accumulate, helping maintain clear water flow. Balcony downspouts where leaves and small debris are common, reducing clog risk during rain. Rooftop gutters that experience exposure to weather and sun, providing longlasting protection and safety. Notes Designed to connect with standard floor drain systems and available in multiple sizes to ensure precise compatibility with outdoor drainage applications.