DuraVent Concentric Vent System 3" x 5" Roof Support reflective-glass Diameter 4" Size 18" x

Diameter 4" Size 18" x 18" Material 24/18 Gauge Stainless Steel

Hearth Spacer

Log Style Options: Charred Split

propane tank

DuraVent Concentric Vent System 3" x 5" Roof Support reflective-glass Diameter 4" Size 18" xAn 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