K23 HS Insulating Fire Brick

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This variant is currently sold out. Price may change when restocked!

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This is the brick we use for our annealing, pick up, and color ovens. The HS (high strength) version of this brick makes for an oven that will take a beating and age well. Maximum temperature is 2300 degrees Fahrenheit. Not recommended for gloryholes.


Each: $4.95

Box of 12: $53.46


2-1/2 Straight = 2-1/2" x 4-1/2" x 9"