Amazon.com : 16" Rectangular Self Watering Planters Window Box 2 Pack With Water Level Indicator and Auto Drain Holes for All Outdoor/Indoor Herbs Plants Flowers Pots Residential and Commercial Grade (rocky grey) :
DecoPots -Self Watering Window Box Planter - Indoor/Outdoor - Windowsill/Oblong Shape Plastic Planter with Bottom Watering and Water Level Indicator 15.6 Inch Long, Sand - Walmart.com
Amazon.com : GardenBasix Self Watering Planter Pots Window Box for Indoor Plants Home Garden Modern Decorative Flower Pot for All House Herbs Succulents Set of 6 (6, Clay(Rectangle)) : Patio, Lawn & Garden