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RTH-USA ILTEX-0.4 Ultralight Fire Insulation Bricks - Pack of 6

Product code: B0DWH1LCRS
RTH-USA ILTEX-0.4 Ultralight Fire Insulation Bricks - Pack of 6
RTH-USA ILTEX-0.4 Ultralight Fire Insulation Bricks - Pack of 6
RTH-USA ILTEX-0.4 Ultralight Fire Insulation Bricks - Pack of 6
RTH-USA ILTEX-0.4 Ultralight Fire Insulation Bricks - Pack of 6
RTH-USA ILTEX-0.4 Ultralight Fire Insulation Bricks - Pack of 6
RTH-USA ILTEX-0.4 Ultralight Fire Insulation Bricks - Pack of 6
RTH-USA ILTEX-0.4 Ultralight Fire Insulation Bricks - Pack of 6
RTH-USA ILTEX-0.4 Ultralight Fire Insulation Bricks - Pack of 6
RTH-USA ILTEX-0.4 Ultralight Fire Insulation Bricks - Pack of 6
RTH-USA ILTEX-0.4 Ultralight Fire Insulation Bricks - Pack of 6
RTH-USA ILTEX-0.4 Ultralight Fire Insulation Bricks - Pack of 6
RTH-USA ILTEX-0.4 Ultralight Fire Insulation Bricks - Pack of 6
RTH-USA ILTEX-0.4 Ultralight Fire Insulation Bricks - Pack of 6
RTH-USA ILTEX-0.4 Ultralight Fire Insulation Bricks - Pack of 6
Description:

The RTH-USA ILTEX-0.4 Ultralight Heat-Insulating Brick is engineered for superior thermal insulation across a wide range of high-temperature industrial and residential applications. Each brick offers low thermal conductivity, high energy efficiency, and a service temperature tolerance up to 850°C (1562°F). Ideal for boiler units, kilns, gas furnaces, thermal and electric furnaces, heat exchangers, and metallurgical operations, these bricks are lightweight for easy handling and installation. Crafted from environmentally friendly materials, ILTEX-0.4 bricks offer durable performance and reliable protection against extreme heat conditions.

 

Dimensional Tolerances:

Length: ± 5/32 in  

Width: ± 3/32 in  

Thickness: ± 1/16 in  

In accordance with ASTM C1261-22

 

  • Ultra-Lightweight Design: Easy to handle and install, ideal for lightweight thermal insulation projects.
  • High Thermal Insulation: Rated for maximum temperatures up to 850°C (1562°F), suitable for power plants, kilns, furnaces, and boilers.
  • Low Thermal Conductivity: Minimizes heat loss for improved energy efficiency and safety.
  • Eco-Friendly Materials: Manufactured from environmentally sustainable, non-toxic raw materials.
  • Standard Brick Size: Each brick measures 9” x 4.5” x 1.25”, perfect for modular builds and repairs.
  • Convenient Packaging: Includes 6 fire-insulating bricks per box, ready for immediate application.

Package Dimensions: ‎ 10 x 8 x 6 inches
Package Weight: ‎ 4.9 Pounds
Item model number: ‎ ILTEX-0.4-6

Global Trade Identification Number: 00860012991969

Product characteristics:
Special Feature Refractory product
Manufacturer Refrathermica
Delivery Shipping included
Country of Origin EU
Product availability Availiable
Material Fireclay
Product reviews RTH-USA ILTEX-0.4 Ultralight Fire Insulation Bricks - Pack of 6:
(5.0)
1 review
Leave feedback
Vadym
(5)
10.10.2025
As a non-professional chimney installer, I’ve used ILTEX-0.4 and it is hands down the best. Lightweight, easy to cut and fit, with excellent thermal insulation.
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(5.0)
1 review
55 USD
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MAIN CHARACTERISTICS see all
Special Feature Refractory product
Manufacturer Refrathermica
Delivery Shipping included
Country of Origin EU
Product availability Availiable
Material Fireclay
Brief description of the product see all
  • ultra-light
  • thermal insulating
  • environmentally friendly
  • low thermal conductivity
  • 1500 F service temperature
  • 9" x 4.5" x 1.25" size each
  • 6 bricks pack
RECENT FEEDBACK see all
Vadym
(5)
10.10.2025
As a non-professional chimney installer, I’ve used ILTEX-0.4 and it is hands down the best. Lightweight, easy to cut and fit, with excellent thermal insulation.
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