Metal-Fab Sure-Seal Direct Vent 5" x 420" Length Flexible Chimney Liner d25 Flame Adjusting Knob

Flame Adjusting Knob

Model 4MOFS6 Application For use with category I natural gas-burning or propane-fired appliances such as gas boilers

Quick and easy installation

Mineral Rocks Media

lightweight design which eliminates the need for field assembly of pipe sections

Metal-Fab Sure-Seal Direct Vent 5" x 420" Length Flexible Chimney Liner d25 Flame Adjusting KnobDirect vent systems are balanced pressure systems acquiring intake air from outside the dwelling while exhausting combustion gases through the sealed flue. UL 2112 tested and listed, Metal Fab Direct Vent products are designed for safety, strength, and reliability, generating a product that lasts a lifetime. Precision design and construction of the 430 stainless steel flue eliminate the need for gaskets and reduce leaks, enhancing product