We found this at 21 stores including Walmart, Shop.com, and Sam's Club. This product sells from $105.99 up to $362.42. Users can save 70% by shopping at Wayfair.

Prices are currently low for this product, typically ranging from $170 to $298, and the lowest price we've seen is $105.58.

This product is also marketed as the 

Nantucket Resin Window Box with Water Reservoir at Wayfair

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Nantucket Planter Window Box Planter at Wayfair

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Mayne Nantucket 4ft Window Box - 48" x 11.7" x 10.2" - Polyethylene - Black (4831-B) at Walmart

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Mayne Nantucket 4-Foot Window Box – Self-Watering, Weather-Resistant Planter for Flowers – Durable Design for Outdoor Use, Perfect for Windows, Railings, or Fences at Amazon

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Nantucket 48 in. x 11.5 in. Self-Watering Black Polyethylene Window Box at Home Depot

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Mayne Rectangle 48-Inches W Medium Black Plastic Outdoor Window box with Drainage Holes with Self Watering at Lowe's

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