Insulating FireBrick Thermal Ceramics K-23 (10 pack) Start Price USD 31.80 Current Price USD 31.80 Time Left - Bid Count 0 Buy It Now Price - Reserve Price - Start Time Friday, November 14, 2008 End Time Friday, November 21, 2008 Location Portland, Oregon See more about 'Insulating FireBrick Thermal Ceramics K-23 (10 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 10 pcs. .    These are brand name K-23  9" x 4 1/2" x 3" 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!