DuraVent Concentric Vent System 3" x 5" Galvalume Air Intake Manifold d2 Model ISS2106AA Size 21" Series

Model ISS2106AA Size 21" Series Radiant Heat Vent Type Single Vented Fuel Type Natural Gas Or Propane Certifications ANSI/RGA2/72 Weight 29lbs

keeps birds

Millivolt or Modulating Fuel Source L

Model SF8-18TKT Clearance UL and ULC listed to 1777 standard

DuraVent Concentric Vent System 3" x 5" Galvalume Air Intake Manifold d2 Model ISS2106AA Size 21" SeriesAn economical venting solution for condensing and noncondensing appliances, the Concentric Venting System (CVS) features a UL1738 approved super ferritic stainless steel inner wall. The proprietary twist lock connection eliminates use of clamps or mechanical fasteners and saves installation time. Only one penetration is needed through the roof or the wall for both exhaust and combustion air. Multiple pipe lengths and telescoping pipe extensions