Security Chimneys


Security Chimneys Tubinox 6LMA Stainless Steel Masonry Adaptor

Estimated Arrival: Between and . (To All Contiguous States)

✔ Same-Day Order Processing
✔ Free Returns
✔ No Restocking Fees
✔ Financing Options Available

Text or call 888-992-1556, start live chat, or email with any questions. Our team is available to serve you 8:00 AM - 11:59 PM ET, 7 days a week.


Since starting operations in 1960, Security Chimneys International has built a reputation as one of the most trusted suppliers of quality chimneys in North America. Our dedication to total quality lives in the research and development of new products and services for the residential and commercial markets. With a 104,800-square-foot manufacturing facility in Laval, Quebec, we are fully equipped and accredited to certify that all our products are in accordance with UL and ULC standards.
Throughout our history, our product offerings have evolved. We’ve strengthened our focus on maintaining our leadership position in the industry by designing, building, and marketing a complete line of chimneys for residential and commercial applications that have set the standard that other manufacturers have often imitated, but never equaled.

Ultimately, Security Chimneys International believes that quality relationships develop quality products. We have developed valuable partnerships by providing superior sales support, customer service, and products. But most of all, we’ve fostered an environment where customer focus is the key to our success.

Masonry Adaptor

Designed for use at the indoor exit of the masonry chimney, it comes complete with a decorative collar and connects with the stove pipe.

Why Choose Security Chimneys?

Click here for more details 



For over 50 years, Security Chimneys has been an innovator in the venting field and a market leader in North America. Instrumental in the company’s growth has been an ongoing focus on product improvement and the introduction of new, innovative products. This drive for excellence has given rise to the Tubinox venting system, a line of high-quality products that deliver optimal performance.


Time and wear can crack clay liners. Under these conditions, your liner can quickly become a nest for creosote deposits. Should this be the case with your masonry chimney, it would be wise, for safety reasons, to consider the advantages of a TUBINOX stainless steel liner. The accumulation of creosote inside a chimney can become dangerous. As it is inflammable, creosote is the cause of chimney fires which can spread to become a real danger. The stainless steel liner impedes the adhesion of creosote.


Controlled combustion stoves are designed accordingly to highly efficient heat transfer and combustion technologies. Their rate of performance increases when they are installed with a chimney of suitable diameter. Clay liners are often too large. Consequently, they remain too cold and do not allow gas to be completely consumed, a situation that leads to gas condensation, thus the formation of creosote.



  • Stainless steel, type 304
  • Twist-lock System
  • Dripless Connection
  • Better corrosion resistance
  • Tubinox can be installed simply and easily,
  • Just slip the components together and twist 1/8th of a turn.
  • Keeps creosote and condensation inside the liner
  • Peace of mind



Model 6LMA
Piece/carton 1
Finish Stainless Steel
Dimensions 6" (dia.)
Listings ULC-S635M, ULC-S640M, and UL-1777
Canada / U.S
Warranty Limited lifetime warranty



Vent Lengths -Straight Installations

Vent Lengths -Offset Installations



California PROP 65: This product can expose you to Lead & Chromium, which is known to the State of California to cause cancer and birth defects, or other reproductive harm. See WARNING