DuraVent Concentric Vent System 3" x 5" Vertical Termination western-driftwood heavy duty ball bearing motor

heavy duty ball bearing motor features permanently lubricated provides long life and low maintenance

ASTM 2558 USA Standard (Safety) UL 127 Canadian Standard (Safety) ULC-S610 Approved Chimney Types

an efficiency of 81%

5kg Temperature 750℉

DuraVent Concentric Vent System 3" x 5" Vertical Termination western-driftwood heavy duty ball bearing motorAn 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