K23 Insulating Firebrick 4.5 x 4.5 x .75 Fire Brick Thermal Ceramics 2300F Qty 1

Iya Knows Best
(10102)
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US $2.99
ApproximatelyS$ 3.85
Condition:
New
48 available80 sold
People want this. 29 people are watching this.
Breathe easy. Returns accepted.
Shipping:
US $10.90 (approx S$ 14.04) USPS Priority Mail®.
Located in: Hesperia, California, United States
Delivery:
Estimated between Sat, 27 Sep and Tue, 30 Sep to 94104
Estimated delivery dates - opens in a new window or tab include seller's handling time, origin ZIP Code, destination ZIP Code and time of acceptance and will depend on shipping service selected and receipt of cleared paymentcleared payment - opens in a new window or tab. Delivery times may vary, especially during peak periods.
Ships today if you order in the next 9 hrs 44 mins
Returns:
30 days return. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
Coverage:
Read item description or contact seller for details. See all detailsSee all details on coverage
(Not eligible for eBay purchase protection programmes)
Seller assumes all responsibility for this listing.
eBay item number:192518965805
Last updated on Sep 13, 2025 03:24:00 SGTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item. See the seller's listing for full details. See all condition definitionsopens in a new window or tab
GENUINE
Morgan Thermal Ceramics
Model
IFB Insulating Firebrick
International Buyer PLEASE REQUEST QUOTE
Published Rates vary from Actual Rates
ModelRemove Model Excellent strength at
Low thermal conductivity
Low density
Ultra Low Thermal Conductivity
Country/Region of Manufacture
United States
Hot Blast Stove
Heat Treat Oven
Forge or Furnace
Blacksmith Blacksmithing
Propane Gas Forge
Rocket Stove
Excellent Strength
Thermal Stability
Universal Design
Replaces many current firebricks
Made in the USA
USA Veteran Seller
Continuous work temp rated 2300F
Will withstand bursts of 2750F
Cement with K Bond Wet Mortar
Hold Together or Increase Temp Rating
Air Dry Wet Mortar Size Choices
Ceramic Fiber Blanket Choices
Air Dry Wet Mortar Available
Ceramic Fiber Blanket Choices
MPN
K23 2300F
Excellent strength at operating temps K
Heat Treat Oven
Factory Fresh Firebrick
USA Veteran Seller
Low density Kiln Repair or Oven Repair
Fireplace Chimney Stove Oven Heart Repair
Brand
Morgan Thermal Ceramics
Other Thermal Ceramic products available
Ceramic Fiber Blankets and Mortar to complement
Sold as a SINGLE individual firebrick
Alumina and Silica
California Prop 65 Warning
WARNING PROP 65: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Avoid breathing fiber particulates and dust. SAFETY INSTRUCTIONS FOR PERSONAL PROTECTION MAY INCLUDE: WEAR SAFETY MASK | WEAR SAFETY GLASSES | WEAR SAFETY GLOVES.
UPC
Does not apply
Category

Item description from the seller

About this seller

Iya Knows Best

100% positive feedback•65K items sold

Joined Jul 2010
Usually responds within 24 hours
Learning heat containment and thermal nuclear dynamics while serving in the Marine Corps, I had the opportunity to work with many products and study their properties, as well as their effectiveness. I ...
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Detailed Seller Ratings

Average for the last 12 months
Accurate description
5.0
Reasonable shipping cost
4.9
Shipping speed
5.0
Communication
5.0

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Seller feedback (9,385)

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  • 2***1 (636)- Feedback left by buyer.
    More than a year ago
    Verified purchase
    Very nice. And packaged extremely well thank you.
  • i***n (355)- Feedback left by buyer.
    More than a year ago
    Verified purchase
    Nice brick broke in a few days.Gonna have to buy more
    Reply from: iyaknowsbest- Feedback replied by seller iyaknowsbest.- Feedback replied by seller iyaknowsbest.
    This is a very small and fragile firebrick and can't always be used in all applications. The good news is, more often than not, it can still be used, as it continues to retain its insulating properties. Also, depending on the application and the type of break, one can use compression to hold the firebrick together, or firebrick mortar/cement can be used to repair some damage. How was the firebrick used, and what type of break? Give us a shout through instant messages!
  • r***r (834)- Feedback left by buyer.
    More than a year ago
    Verified purchase
    thank you. I love it
See all feedback