The Covington Self-Watering Planter, Cube pairs classic architectural detailing with a structured, paneled form suited for front door entryways, porch columns, garden walkways, and patio landscaping. Its balanced proportions make it ideal for symmetrical plantings or anchoring highly visible spaces. Available in 16" and 20" sizes.A built-in reservoir beneath the soil delivers steady root-level hydration. Water is added through the top fill port and stored below the root zone, where roots naturally draw moisture upward as needed. The double-wall polyethylene construction provides insulation and long-term durability while resisting cracking, fading, and chipping. Designed to function beautifully on its own, or with the option to use harvested rainwater as part of the Rainwatr system - helping you put stored rainwater directly to work in your planters. Backed by a 10 year manufacturer's warranty. Color: Black. Material: Plastic.