Rain Bird Mini Root Watering System 18 in. With 0.5 Gpm Bubbler, Check Valve and 4 in. Round Grate

Rain Bird’s Root Watering System (RWS) enables vital water, oxygen, and nutrients to bypass compacted soil and directly reach tree and shrub root systems. The RWS promotes tree and shrub investment protection, watering efficiency and landscape aesthetics through deep root growth and tree development.