We found this at ten stores including Wayfair, Target, and Walmart. This product sells from $1 up to $33.65. Users can save 97% by shopping at Amazon.

This is the lowest price we've seen, typically ranging from $7 to $18.

This product is also marketed as the 

Sun Zero Sun Zero Oslo Theater Grade Extreme 100% Blackout Rod Pocket Curtain Panel at Wayfair

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52"x63" Sun Zero Blackout Oslo Theater Grade Rod Pocket Curtain Panel Stone: Energy Efficient, Noise Reduction, Thermal Insulated at Target

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Sun Zero Malmo 1-Piece Theater Grade Extreme 100% Blackout Rod Pocket Curtain Panel, 52"X63", Stone at Walmart

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Sun Zero 63-Inches Stone Blackout Standard lined Rod pocket Single curtain panel at Lowe's

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Alna Theater Grade Stone Polyester 52 in. W x 63 in. L Rod Pocket 100% Blackout Curtain (Single Panel) at Home Depot

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Sun Zero - 52468 Oslo Theater Grade Extreme 100% Blackout Rod Pocket Curtain Panel, 52" x 63", Stone at Amazon

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