DuraVent FasNSeal W2 4" 29-4C Stainless Steel Double Wall Test Port h16.94 With a practical aluminum build

With a practical aluminum build and an output of 50

This millivolt switch control has a max capacity of 300

Maximize your heating potential and create a more comfortable living space with this essential accessory for your Napoleon Direct Vent Fireplace

For Indoor or Outdoor Use

DuraVent FasNSeal W2 4" 29-4C Stainless Steel Double Wall Test Port h16.94 With a practical aluminum buildFasNSeal 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