DuraVent Concentric Vent System 3" x 5" Galvalume Increaser Tee With Cleanout 24in Covers the face of the

Covers the face of the appliance down to the firebox opening

it is durable

For use with Manual Flame Sensing Control Valve ignition systems only

and adjusting the heat output

Enables installer to easily fasten the box in place without the need for another pair of hands

DuraVent Concentric Vent System 3" x 5" Galvalume Increaser Tee With Cleanout 24in Covers the face of theAn 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