DuraVent FasNSeal 4" x 3" 29-4C Stainless Steel Stepped Reducer ash and it allows the appliance

and it allows the appliance to receive commands via a Smartphone (eWeLink App) including:

Variable Flame Height Remote Control Upgrade Kit

meets cozy and comfortable

Center panel = 30″W x 30″H

DuraVent FasNSeal 4" x 3" 29-4C Stainless Steel Stepped Reducer ash and it allows the applianceAll FasNSeal (single 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