Cell Stone provides acid proof and alkali resistant Regenerative Thermal Oxidizers (RTO) media for VOC destruction devices for new and after market devices.

The engineers of Cell Stone have been manufacturing heat recovery media since 1995. As engineers, we are the only heat recovery media manufacturers/suppliers that have designed and built over 400 RTO units globally and 40 years of experience in the RTO manufacturing business.

From the site-specific products we manufacture, to our dedicated customer service and support, we know what’s important to you.  

Cell Stone offers a choice:  

  • Acid resistant, standard duty chemical stoneware.
  • Severe duty and alkali resistant, high alumina, Porcelain.

Engineers with actual RTO experience

​Random Packed Saddle Media

Cell Stone Ultra Low Pressure Saddle Media

Cell Stone's unique patented ULTRA is designed to replace standard 1" or 25mm saddles and mitigate RTO plugging issues. Ultra delivers 
​lowest pressure drop, highest heat recovery. Reduced pressure delivers horsepower savings. 

​​Cell Stone - Heat Recovery Media for RTOs

Our random packed and monolith media meets or exceeds ASTM standards
with regard to chemical composition and crushing strength. 
​Cell Stone's random packed media is guaranteed for 2 years against thermal decomposition.

Our random packed media is press manufactured.  Unlike inferior extruded media,
each individual saddle is pressed for identical size, shape and weight;
​made with superior quality and delivers 25% more crushing strength.  

​​​Exceeding Industry Standards 

Cell Stone Ultra Low Pressure Drop Media

Ceramic Monolith

RTO Engineering Experience


​​​​​​​​​​​Manufacturer and Supplier of Heat Recovery Media Solutions for Regenerative Thermal Oxidizers

​Structured ​Media

​​Cell Stone's unique patented COR-paX is designed for high heat recovery and helps improve process flow and lower utility costs.

​​Extruded monolith is an alternative to random packed media. Cell-Stone offers high alumina content monolith in variety of cell counts and cell geometries.

Phone: +1 888-470-9907

Email: solutions@cell-stone.com

Cell Stone  engineers work with your engineering team in optimizing the plant's overall RTO performance.  With decades of Regenerative Thermal Oxidizer (RTO) experience, we specialize in air pollution control solutions for these unique core industry sectors:

  • Wood and Lumber
  • Printing
  • Wastewater
  • Fertilizer
  • Chemical
  • Petro-Chemical