Insulating FireBrick Thermal Ceramics K-23 (12 pack) Start Price USD 33.00 Current Price USD 33.00 Time Left - Bid Count 2 Buy It Now Price - Reserve Price - Start Time Monday, August 18, 2008 End Time Monday, August 25, 2008 Location Portland, Oregon See more about 'Insulating FireBrick Thermal Ceramics K-23 (12 pack)' Description This is the very best first quality kiln insulating brick available on the market.  It has the optimum K factor for the best insulation value available for kiln IFB's.  You are bidding on a carton of 12 pcs. .    These are brand name K-23  9" x 4 1/2" x 2 1/2" Insulating Firebrick 2300 degree use temperature.     If you require information on additional brick please call 1-800-325-2492 with questions.       Shipping will be actual UPS cost based on your zip code. Place a Bid!