Insulating Fire Brick for Ovens, Kilns, Fireplaces, Forges - 4 Piece Full Brick (9" X 4.5" X 2.5") 2300F. Making Glass - Glass Kilns & Glass Forges. Oven - Pizza Ovens, Outdoor Ovens, Barbeque Oven Insulation, & Wood Fired Oven.
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