
Lynn Manufacturing Insulating Fire Brick, Heat Insulation Block, Low Thermal Conductivity, 1.25 x 4.5 x 9 Split, Pack of 2, 2600-F Rated, for Kilns, Forges, Furnaces, Soldering, 3146R 
Lynn Manufacturing Insulating Fire Brick, Heat Insulation Block, Low Thermal Conductivity, 2.5 x 4.5 x 9, Pack of 12, 2300F-Rated, for Kilns, Forges, Furnaces, Soldering, 3123T 
Lynn Manufacturing Insulating Fire Brick, Heat Insulation Block, Low Thermal Conductivity, 2.5 x 4.5 x 9, Pack of 4, 3000F-Rated, for Kilns, Forges, Furnaces, Soldering, 3130R