DuraVent FasNSeal W2 6" 29-4C Stainless Steel Universal Appliance Adapter With Test Port w29.5 This gas vent increaser allows

This gas vent increaser allows you to adapt 3" diameter pipe to 4" diameter pipe when required for your application

If you are looking for an infrared heater

Can be built into custom non-combustible enclosures

Stainless steel inner wall with twist-lock connections

Each Fyre Gem is approximately 5/8" in diameter and is manufactured to withstand the extreme heat and temperature variations in the fireplace without melting or discoloring

DuraVent FasNSeal W2 6" 29-4C Stainless Steel Universal Appliance Adapter With Test Port w29.5 This gas vent increaser allowsFasNSeal W2 (double wall) vent lengths and components feature patented built in mechanical locking band and triple lipped directional gaskets. All pipes and components are engineered with smooth clean welds located 90 from mechanical locking bands. This construction feature allows for ease of installation. The air space between the inner and outer wall on FasNSeal W2 helps to reduce the clearance to combustibles in addition to creating a heat shield