DCN Plastic 3527-12 Harmony Rail Planter, Cream (Discontinued by Manufacturer) Harmony rail planter It is self-watering and has overflow protection The unique textured vertical finish allows the planter to look good in any decor Holds approximately 6.2 gallon; fits on a 2-inch by 4-inch or a 2-inch by 6-inch rail Measures 27-inch length by 9-1/2-inch height by 11-3/4-inch depth