GrillPro 8 X 4 inch Cast Iron Smoker Box - 150

8 X 4- Inch Cast Iron Smoker Box - 150. 150. Smoker Boxes and Smoker Trays. This cast iron smoker box will add delicious smokey aromatics to your food. The notches in the top releases smoke without burning the wood chips. When finished, simply empty the box and rinse.