K23 HS Insulating Fire Brick

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

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"