This rainwater collection system is specifically designed for 2"x 3" or 3"x 4" residential downspouts. It is made of durable PP material, offering excellent corrosion resistance, impact resistance, and UV resistance. It is non-toxic, environmentally friendly, and outperforms common PVC materials. The system features an adjustable valve with five flow control modes: closed, 20%, 50%, 80%, and 100%, allowing users to regulate the water collection volume as needed and prevent overflow when the rain barrel is full. The built-in filter effectively blocks large leaves and debris, ensuring cleaner collected rainwater and preventing system clogging. The filter cover is removable for easy periodic cleaning. With strong compatibility, it fits standard residential downspouts and is recommended to be installed 18 inches above the rain barrel. Additionally, the system includes a 5-foot retractable hose made of durable and flexible material, suitable for long-term outdoor use, and easily connects the downspout diverter to the rain barrel. Practical in design and easy to install, this product is an ideal choice for household rainwater collection.