DuraVent Concentric Vent System 3" x 5" Wall Strap btu73000 2 x 184 cm Surround

2 x 184 cm Surround Size 16 7/8 x 76  1/4″

American Fyre Designs (AFD) focuses on function in addition to form

(6x3x1) 3-Sided Black Metal Surround

It operates on 120VAC

DuraVent Concentric Vent System 3" x 5" Wall Strap btu73000 2 x 184 cm SurroundAn 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